97914881 has 2 divisors, whose sum is σ = 97914882. Its totient is φ = 97914880.

The previous prime is 97914871. The next prime is 97914899. The reversal of 97914881 is 18841979.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 51552400 + 46362481 = 7180^2 + 6809^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-97914881 is a prime.

It is a super-2 number, since 2×97914881² = 19174647842488322, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (97914871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48957440 + 48957441.

It is an arithmetic number, because the mean of its divisors is an integer number (48957441).

Almost surely, 2^97914881 is an apocalyptic number.

It is an amenable number.

97914881 is a deficient number, since it is larger than the sum of its proper divisors (1).

97914881 is an equidigital number, since it uses as much as digits as its factorization.

97914881 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 145152, while the sum is 47.

The square root of 97914881 is about 9895.1948439634. The cubic root of 97914881 is about 460.9101090018.

The spelling of 97914881 in words is "ninety-seven million, nine hundred fourteen thousand, eight hundred eighty-one".