87004497 has 4 divisors (see below), whose sum is σ = 116006000. Its totient is φ = 58002996.

The previous prime is 87004493. The next prime is 87004537. The reversal of 87004497 is 79440078.

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.

It is not a de Polignac number, because 87004497 - 2² = 87004493 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87004493) 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, 14500747 + ... + 14500752.

It is an arithmetic number, because the mean of its divisors is an integer number (29001500).

Almost surely, 2^87004497 is an apocalyptic number.

It is an amenable number.

87004497 is a deficient number, since it is larger than the sum of its proper divisors (29001503).

87004497 is a wasteful number, since it uses less digits than its factorization.

87004497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29001502.

The product of its (nonzero) digits is 56448, while the sum is 39.

The square root of 87004497 is about 9327.6201144772. The cubic root of 87004497 is about 443.1123966819.

The spelling of 87004497 in words is "eighty-seven million, four thousand, four hundred ninety-seven".