7950881 has 2 divisors, whose sum is σ = 7950882. Its totient is φ = 7950880.

The previous prime is 7950871. The next prime is 7950889. The reversal of 7950881 is 1880597.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7929856 + 21025 = 2816^2 + 145^2 .

It is an emirp because it is prime and its reverse (1880597) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7950881 is a prime.

It is a super-2 number, since 2×7950881² = 126433017352322, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (7950889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3975440 + 3975441.

It is an arithmetic number, because the mean of its divisors is an integer number (3975441).

Almost surely, 2^7950881 is an apocalyptic number.

It is an amenable number.

7950881 is a deficient number, since it is larger than the sum of its proper divisors (1).

7950881 is an equidigital number, since it uses as much as digits as its factorization.

7950881 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20160, while the sum is 38.

The square root of 7950881 is about 2819.7306608965. The cubic root of 7950881 is about 199.5898343959.

The spelling of 7950881 in words is "seven million, nine hundred fifty thousand, eight hundred eighty-one".