87492764 has 6 divisors (see below), whose sum is σ = 153112344. Its totient is φ = 43746380.

The previous prime is 87492751. The next prime is 87492767. The reversal of 87492764 is 46729478.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87492767) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10936592 + ... + 10936599.

It is an arithmetic number, because the mean of its divisors is an integer number (25518724).

Almost surely, 2^87492764 is an apocalyptic number.

It is an amenable number.

87492764 is a deficient number, since it is larger than the sum of its proper divisors (65619580).

87492764 is a wasteful number, since it uses less digits than its factorization.

87492764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21873195 (or 21873193 counting only the distinct ones).

The product of its digits is 677376, while the sum is 47.

The square root of 87492764 is about 9353.7566784688. The cubic root of 87492764 is about 443.9397626799.

The spelling of 87492764 in words is "eighty-seven million, four hundred ninety-two thousand, seven hundred sixty-four".