87926399 has 4 divisors (see below), whose sum is σ = 95919720. Its totient is φ = 79933080.

The previous prime is 87926353. The next prime is 87926429. The reversal of 87926399 is 99362978.

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

It is a cyclic number.

It is not a de Polignac number, because 87926399 - 2¹⁶ = 87860863 is a prime.

It is a super-2 number, since 2×87926399² = 15462103282214402, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 87926399.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87926339) 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, 3996644 + ... + 3996665.

It is an arithmetic number, because the mean of its divisors is an integer number (23979930).

Almost surely, 2^87926399 is an apocalyptic number.

87926399 is a deficient number, since it is larger than the sum of its proper divisors (7993321).

87926399 is a wasteful number, since it uses less digits than its factorization.

87926399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7993320.

The product of its digits is 1469664, while the sum is 53.

The square root of 87926399 is about 9376.9077525589. The cubic root of 87926399 is about 444.6719781029.

The spelling of 87926399 in words is "eighty-seven million, nine hundred twenty-six thousand, three hundred ninety-nine".