98557920 has 72 divisors (see below), whose sum is σ = 336333816. Its totient is φ = 26281728.

The previous prime is 98557903. The next prime is 98557931. The reversal of 98557920 is 2975589.

It is a happy number.

98557920 is a `hidden beast` number, since 9 + 8 + 557 + 92 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32782 + ... + 35661.

It is an arithmetic number, because the mean of its divisors is an integer number (4671303).

Almost surely, 2^98557920 is an apocalyptic number.

98557920 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

98557920 is an abundant number, since it is smaller than the sum of its proper divisors (237775896).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

98557920 is a wasteful number, since it uses less digits than its factorization.

98557920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68464 (or 68453 counting only the distinct ones).

The product of its (nonzero) digits is 226800, while the sum is 45.

The square root of 98557920 is about 9927.6341592547. The cubic root of 98557920 is about 461.9168906555.

The spelling of 98557920 in words is "ninety-eight million, five hundred fifty-seven thousand, nine hundred twenty".