87456331 has 8 divisors (see below), whose sum is σ = 89915904. Its totient is φ = 85021800.

The previous prime is 87456323. The next prime is 87456337. The reversal of 87456331 is 13365478.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 87456331 - 2³ = 87456323 is a prime.

It is a super-2 number, since 2×87456331² = 15297219663963122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87456337) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 936 + ... + 13258.

It is an arithmetic number, because the mean of its divisors is an integer number (11239488).

Almost surely, 2^87456331 is an apocalyptic number.

87456331 is a deficient number, since it is larger than the sum of its proper divisors (2459573).

87456331 is a wasteful number, since it uses less digits than its factorization.

87456331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12521.

The product of its digits is 60480, while the sum is 37.

The square root of 87456331 is about 9351.8089693920. The cubic root of 87456331 is about 443.8781335723.

It can be divided in two parts, 874 and 56331, that multiplied together give a palindrome (49233294).

The spelling of 87456331 in words is "eighty-seven million, four hundred fifty-six thousand, three hundred thirty-one".