97169291 has 2 divisors, whose sum is σ = 97169292. Its totient is φ = 97169290.

The previous prime is 97169239. The next prime is 97169309. The reversal of 97169291 is 19296179.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-97169291 is a prime.

It is a super-2 number, since 2×97169291² = 18883742226885362, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (97160291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48584645 + 48584646.

It is an arithmetic number, because the mean of its divisors is an integer number (48584646).

Almost surely, 2^97169291 is an apocalyptic number.

97169291 is a deficient number, since it is larger than the sum of its proper divisors (1).

97169291 is an equidigital number, since it uses as much as digits as its factorization.

97169291 is an evil number, because the sum of its binary digits is even.

The product of its digits is 61236, while the sum is 44.

The square root of 97169291 is about 9857.4485035429. The cubic root of 97169291 is about 459.7372333558.

The spelling of 97169291 in words is "ninety-seven million, one hundred sixty-nine thousand, two hundred ninety-one".