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10627681 is a prime number
BaseRepresentation
bin101000100010…
…101001100001
3201222221102211
4220202221201
510210041211
61015442121
7156222331
oct50425141
921887384
1010627681
115aa9809
123686341
13228148c
1415a90c1
15dede21
hexa22a61

10627681 has 2 divisors, whose sum is σ = 10627682. Its totient is φ = 10627680.

The previous prime is 10627627. The next prime is 10627691. The reversal of 10627681 is 18672601.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10627600 + 81 = 3260^2 + 9^2 .

It is an emirp because it is prime and its reverse (18672601) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10627681 - 27 = 10627553 is a prime.

It is a super-2 number, since 2×106276812 = 225895206875522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (10627691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5313840 + 5313841.

It is an arithmetic number, because the mean of its divisors is an integer number (5313841).

Almost surely, 210627681 is an apocalyptic number.

It is an amenable number.

10627681 is a deficient number, since it is larger than the sum of its proper divisors (1).

10627681 is an equidigital number, since it uses as much as digits as its factorization.

10627681 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 10627681 is about 3260.0124232892. The cubic root of 10627681 is about 219.8599728769.

It can be divided in two parts, 106276 and 81, that multiplied together give a square (8608356 = 29342).

The spelling of 10627681 in words is "ten million, six hundred twenty-seven thousand, six hundred eighty-one".