87670460 has 24 divisors (see below), whose sum is σ = 187230960. Its totient is φ = 34473344.

The previous prime is 87670459. The next prime is 87670477. The reversal of 87670460 is 6407678.

It is a super-2 number, since 2×87670460² = 15372219113223200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35969 + ... + 38328.

It is an arithmetic number, because the mean of its divisors is an integer number (7801290).

Almost surely, 2^87670460 is an apocalyptic number.

It is an amenable number.

87670460 is an abundant number, since it is smaller than the sum of its proper divisors (99560500).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

87670460 is a wasteful number, since it uses less digits than its factorization.

87670460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74365 (or 74363 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 38.

The square root of 87670460 is about 9363.2505039650. The cubic root of 87670460 is about 444.2401036115.

The spelling of 87670460 in words is "eighty-seven million, six hundred seventy thousand, four hundred sixty".