61009727 has 2 divisors, whose sum is σ = 61009728. Its totient is φ = 61009726.

The previous prime is 61009693. The next prime is 61009747. The reversal of 61009727 is 72790016.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 61009727 - 2⁸ = 61009471 is a prime.

It is a super-2 number, since 2×61009727² = 7444373577229058, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 61009693 and 61009702.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61009747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30504863 + 30504864.

It is an arithmetic number, because the mean of its divisors is an integer number (30504864).

Almost surely, 2^61009727 is an apocalyptic number.

61009727 is a deficient number, since it is larger than the sum of its proper divisors (1).

61009727 is an equidigital number, since it uses as much as digits as its factorization.

61009727 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5292, while the sum is 32.

The square root of 61009727 is about 7810.8723584501. The cubic root of 61009727 is about 393.6706408638.

The spelling of 61009727 in words is "sixty-one million, nine thousand, seven hundred twenty-seven".