99730375 has 16 divisors (see below), whose sum is σ = 124813728. Its totient is φ = 79560000.

The previous prime is 99730349. The next prime is 99730399. The reversal of 99730375 is 57303799.

It is not a de Polignac number, because 99730375 - 2⁵ = 99730343 is a prime.

It is a super-2 number, since 2×99730375² = 19892295395281250, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54475 + ... + 56275.

It is an arithmetic number, because the mean of its divisors is an integer number (7800858).

Almost surely, 2^99730375 is an apocalyptic number.

99730375 is a deficient number, since it is larger than the sum of its proper divisors (25083353).

99730375 is a wasteful number, since it uses less digits than its factorization.

99730375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2259 (or 2249 counting only the distinct ones).

The product of its (nonzero) digits is 178605, while the sum is 43.

The square root of 99730375 is about 9986.5096505236. The cubic root of 99730375 is about 463.7413450772.

The spelling of 99730375 in words is "ninety-nine million, seven hundred thirty thousand, three hundred seventy-five".