99871004 has 12 divisors (see below), whose sum is σ = 177383304. Its totient is φ = 49190064.

The previous prime is 99870977. The next prime is 99871007. The reversal of 99871004 is 40017899.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99871007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 186059 + ... + 186594.

It is an arithmetic number, because the mean of its divisors is an integer number (14781942).

Almost surely, 2^99871004 is an apocalyptic number.

It is an amenable number.

99871004 is a deficient number, since it is larger than the sum of its proper divisors (77512300).

99871004 is a wasteful number, since it uses less digits than its factorization.

99871004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 372724 (or 372722 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 38.

The square root of 99871004 is about 9993.5481186614. The cubic root of 99871004 is about 463.9592153510.

The spelling of 99871004 in words is "ninety-nine million, eight hundred seventy-one thousand, four".