98645664 has 48 divisors (see below), whose sum is σ = 278867232. Its totient is φ = 30352128.

The previous prime is 98645653. The next prime is 98645669. The reversal of 98645664 is 46654689.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (98645669) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38274 + ... + 40769.

It is an arithmetic number, because the mean of its divisors is an integer number (5809734).

Almost surely, 2^98645664 is an apocalyptic number.

It is an amenable number.

98645664 is an abundant number, since it is smaller than the sum of its proper divisors (180221568).

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

98645664 is a wasteful number, since it uses less digits than its factorization.

98645664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79069 (or 79061 counting only the distinct ones).

The product of its digits is 1244160, while the sum is 48.

The square root of 98645664 is about 9932.0523558829. The cubic root of 98645664 is about 462.0539282263.

The spelling of 98645664 in words is "ninety-eight million, six hundred forty-five thousand, six hundred sixty-four".