87232477 has 4 divisors (see below), whose sum is σ = 91823680. Its totient is φ = 82641276.

The previous prime is 87232433. The next prime is 87232567. The reversal of 87232477 is 77423278.

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 a cyclic number.

It is not a de Polignac number, because 87232477 - 2⁷ = 87232349 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87232417) 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, 2295573 + ... + 2295610.

It is an arithmetic number, because the mean of its divisors is an integer number (22955920).

Almost surely, 2^87232477 is an apocalyptic number.

It is an amenable number.

87232477 is a deficient number, since it is larger than the sum of its proper divisors (4591203).

87232477 is a wasteful number, since it uses less digits than its factorization.

87232477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4591202.

The product of its digits is 131712, while the sum is 40.

The square root of 87232477 is about 9339.8328143495. The cubic root of 87232477 is about 443.4990918536.

The spelling of 87232477 in words is "eighty-seven million, two hundred thirty-two thousand, four hundred seventy-seven".