98981905 has 16 divisors (see below), whose sum is σ = 137199744. Its totient is φ = 67751680.

The previous prime is 98981893. The next prime is 98981921. The reversal of 98981905 is 50918989.

It is a happy number.

It is not a de Polignac number, because 98981905 - 2²⁵ = 65427473 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51997 + ... + 53866.

It is an arithmetic number, because the mean of its divisors is an integer number (8574984).

Almost surely, 2^98981905 is an apocalyptic number.

It is an amenable number.

98981905 is a deficient number, since it is larger than the sum of its proper divisors (38217839).

98981905 is a wasteful number, since it uses less digits than its factorization.

98981905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105896.

The product of its (nonzero) digits is 233280, while the sum is 49.

The square root of 98981905 is about 9948.9650215487. The cubic root of 98981905 is about 462.5783144715.

The spelling of 98981905 in words is "ninety-eight million, nine hundred eighty-one thousand, nine hundred five".