98402531 has 2 divisors, whose sum is σ = 98402532. Its totient is φ = 98402530.

The previous prime is 98402497. The next prime is 98402543. The reversal of 98402531 is 13520489.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 98402531 - 2¹⁰ = 98401507 is a prime.

It is a super-2 number, since 2×98402531² = 19366116214411922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (98402561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49201265 + 49201266.

It is an arithmetic number, because the mean of its divisors is an integer number (49201266).

Almost surely, 2^98402531 is an apocalyptic number.

98402531 is a deficient number, since it is larger than the sum of its proper divisors (1).

98402531 is an equidigital number, since it uses as much as digits as its factorization.

98402531 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 98402531 is about 9919.8049880025. The cubic root of 98402531 is about 461.6740062057.

The spelling of 98402531 in words is "ninety-eight million, four hundred two thousand, five hundred thirty-one".