99477980 has 24 divisors (see below), whose sum is σ = 238747488. Its totient is φ = 34106688.

The previous prime is 99477971. The next prime is 99478003. The reversal of 99477980 is 8977499.

It is a super-3 number, since 3×99477980³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 355139 + ... + 355418.

It is an arithmetic number, because the mean of its divisors is an integer number (9947812).

Almost surely, 2^99477980 is an apocalyptic number.

It is an amenable number.

99477980 is an abundant number, since it is smaller than the sum of its proper divisors (139269508).

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

99477980 is a wasteful number, since it uses less digits than its factorization.

99477980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 710573 (or 710571 counting only the distinct ones).

The product of its (nonzero) digits is 1143072, while the sum is 53.

The square root of 99477980 is about 9973.8648476907. The cubic root of 99477980 is about 463.3498064751.

The spelling of 99477980 in words is "ninety-nine million, four hundred seventy-seven thousand, nine hundred eighty".