97892131 has 2 divisors, whose sum is σ = 97892132. Its totient is φ = 97892130.

The previous prime is 97892107. The next prime is 97892147. The reversal of 97892131 is 13129879.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 97892131 - 2¹⁹ = 97367843 is a prime.

It is a super-2 number, since 2×97892131² = 19165738623442322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (97892101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48946065 + 48946066.

It is an arithmetic number, because the mean of its divisors is an integer number (48946066).

Almost surely, 2^97892131 is an apocalyptic number.

97892131 is a deficient number, since it is larger than the sum of its proper divisors (1).

97892131 is an equidigital number, since it uses as much as digits as its factorization.

97892131 is an evil number, because the sum of its binary digits is even.

The product of its digits is 27216, while the sum is 40.

The square root of 97892131 is about 9894.0452293286. The cubic root of 97892131 is about 460.8744095689.

The spelling of 97892131 in words is "ninety-seven million, eight hundred ninety-two thousand, one hundred thirty-one".