99744870 has 32 divisors (see below), whose sum is σ = 251988480. Its totient is φ = 25198560.

The previous prime is 99744863. The next prime is 99744893. The reversal of 99744870 is 7844799.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 86926 + ... + 88065.

It is an arithmetic number, because the mean of its divisors is an integer number (7874640).

Almost surely, 2^99744870 is an apocalyptic number.

99744870 is an abundant number, since it is smaller than the sum of its proper divisors (152243610).

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

99744870 is a wasteful number, since it uses less digits than its factorization.

99744870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175020.

The product of its (nonzero) digits is 508032, while the sum is 48.

The square root of 99744870 is about 9987.2353531896. The cubic root of 99744870 is about 463.7638110015.

The spelling of 99744870 in words is "ninety-nine million, seven hundred forty-four thousand, eight hundred seventy".