87464547 has 24 divisors (see below), whose sum is σ = 132387840. Its totient is φ = 55574640.

The previous prime is 87464539. The next prime is 87464549. The reversal of 87464547 is 74546478.

It is not a de Polignac number, because 87464547 - 2³ = 87464539 is a prime.

It is not an unprimeable number, because it can be changed into a prime (87464549) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16354 + ... + 21032.

It is an arithmetic number, because the mean of its divisors is an integer number (5516160).

Almost surely, 2^87464547 is an apocalyptic number.

87464547 is a deficient number, since it is larger than the sum of its proper divisors (44923293).

87464547 is a wasteful number, since it uses less digits than its factorization.

87464547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4783 (or 4780 counting only the distinct ones).

The product of its digits is 752640, while the sum is 45.

The square root of 87464547 is about 9352.2482323771. The cubic root of 87464547 is about 443.8920330369.

The spelling of 87464547 in words is "eighty-seven million, four hundred sixty-four thousand, five hundred forty-seven".