87421795 has 16 divisors (see below), whose sum is σ = 108725760. Its totient is φ = 67433184.

The previous prime is 87421783. The next prime is 87421819. The reversal of 87421795 is 59712478.

It is a cyclic number.

It is not a de Polignac number, because 87421795 - 2²¹ = 85324643 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (43).

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, 14412 + ... + 19558.

It is an arithmetic number, because the mean of its divisors is an integer number (6795360).

Almost surely, 2^87421795 is an apocalyptic number.

87421795 is a deficient number, since it is larger than the sum of its proper divisors (21303965).

87421795 is a wasteful number, since it uses less digits than its factorization.

87421795 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5274.

The product of its digits is 141120, while the sum is 43.

The square root of 87421795 is about 9349.9622993892. The cubic root of 87421795 is about 443.8196975758.

The spelling of 87421795 in words is "eighty-seven million, four hundred twenty-one thousand, seven hundred ninety-five".