99475680 has 48 divisors (see below), whose sum is σ = 313349904. Its totient is φ = 26526720.

The previous prime is 99475679. The next prime is 99475681. The reversal of 99475680 is 8657499.

It is an interprime number because it is at equal distance from previous prime (99475679) and next prime (99475681).

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

It is a super-2 number, since 2×99475680² = 19790821822924800, which contains 22 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99475681) 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, 103141 + ... + 104100.

It is an arithmetic number, because the mean of its divisors is an integer number (6528123).

Almost surely, 2^99475680 is an apocalyptic number.

It is an amenable number.

99475680 is an abundant number, since it is smaller than the sum of its proper divisors (213874224).

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

99475680 is a wasteful number, since it uses less digits than its factorization.

99475680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207259 (or 207251 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 48.

The square root of 99475680 is about 9973.7495456824. The cubic root of 99475680 is about 463.3462354578.

The spelling of 99475680 in words is "ninety-nine million, four hundred seventy-five thousand, six hundred eighty".