99875423 has 4 divisors (see below), whose sum is σ = 102000480. Its totient is φ = 97750368.

The previous prime is 99875417. The next prime is 99875429. The reversal of 99875423 is 32457899.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (99875417) and next prime (99875429).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-99875423 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (47), and also a Moran number because the ratio is a prime number: 2125009 = 99875423 / (9 + 9 + 8 + 7 + 5 + 4 + 2 + 3).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99875429) 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, 1062458 + ... + 1062551.

It is an arithmetic number, because the mean of its divisors is an integer number (25500120).

Almost surely, 2^99875423 is an apocalyptic number.

99875423 is a deficient number, since it is larger than the sum of its proper divisors (2125057).

99875423 is a wasteful number, since it uses less digits than its factorization.

99875423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2125056.

The product of its digits is 544320, while the sum is 47.

The square root of 99875423 is about 9993.7692088621. The cubic root of 99875423 is about 463.9660581965.

The spelling of 99875423 in words is "ninety-nine million, eight hundred seventy-five thousand, four hundred twenty-three".