87464436 has 12 divisors (see below), whose sum is σ = 204083712. Its totient is φ = 29154808.

The previous prime is 87464431. The next prime is 87464441. The reversal of 87464436 is 63446478.

It is an interprime number because it is at equal distance from previous prime (87464431) and next prime (87464441).

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87464431) 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, 3644340 + ... + 3644363.

It is an arithmetic number, because the mean of its divisors is an integer number (17006976).

Almost surely, 2^87464436 is an apocalyptic number.

It is an amenable number.

87464436 is an abundant number, since it is smaller than the sum of its proper divisors (116619276).

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

87464436 is a wasteful number, since it uses less digits than its factorization.

87464436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7288710 (or 7288708 counting only the distinct ones).

The product of its digits is 387072, while the sum is 42.

The square root of 87464436 is about 9352.2422979733. The cubic root of 87464436 is about 443.8918452579.

The spelling of 87464436 in words is "eighty-seven million, four hundred sixty-four thousand, four hundred thirty-six".