99870430 has 16 divisors (see below), whose sum is σ = 196109424. Its totient is φ = 36316480.

The previous prime is 99870389. The next prime is 99870443. The reversal of 99870430 is 3407899.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 453847 + ... + 454066.

It is an arithmetic number, because the mean of its divisors is an integer number (12256839).

Almost surely, 2^99870430 is an apocalyptic number.

99870430 is a deficient number, since it is larger than the sum of its proper divisors (96238994).

99870430 is a wasteful number, since it uses less digits than its factorization.

99870430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 907931.

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 99870430 is about 9993.5194000912. The cubic root of 99870430 is about 463.9583264941.

The spelling of 99870430 in words is "ninety-nine million, eight hundred seventy thousand, four hundred thirty".