99875401 has 4 divisors (see below), whose sum is σ = 99914704. Its totient is φ = 99836100.

The previous prime is 99875383. The next prime is 99875411. The reversal of 99875401 is 10457899.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 10457899 = 103 ⋅101533.

It is a cyclic number.

It is not a de Polignac number, because 99875401 - 2²¹ = 97778249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99875411) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 15555 + ... + 21016.

It is an arithmetic number, because the mean of its divisors is an integer number (24978676).

Almost surely, 2^99875401 is an apocalyptic number.

It is an amenable number.

99875401 is a deficient number, since it is larger than the sum of its proper divisors (39303).

99875401 is a wasteful number, since it uses less digits than its factorization.

99875401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39302.

The product of its (nonzero) digits is 90720, while the sum is 43.

The square root of 99875401 is about 9993.7681081762. The cubic root of 99875401 is about 463.9660241298.

The spelling of 99875401 in words is "ninety-nine million, eight hundred seventy-five thousand, four hundred one".