87054831 has 10 divisors (see below), whose sum is σ = 130044992. Its totient is φ = 58036500.

The previous prime is 87054823. The next prime is 87054859. The reversal of 87054831 is 13845078.

87054831 is a `hidden beast` number, since 87 + 0 + 548 + 31 = 666.

It is not a de Polignac number, because 87054831 - 2³ = 87054823 is a prime.

It is a super-2 number, since 2×87054831² = 15157087200877122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87054031) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 537295 + ... + 537456.

Almost surely, 2^87054831 is an apocalyptic number.

87054831 is a gapful number since it is divisible by the number (81) formed by its first and last digit.

87054831 is a deficient number, since it is larger than the sum of its proper divisors (42990161).

87054831 is a wasteful number, since it uses less digits than its factorization.

87054831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1074763 (or 1074754 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The square root of 87054831 is about 9330.3178402453. The cubic root of 87054831 is about 443.1978302725.

The spelling of 87054831 in words is "eighty-seven million, fifty-four thousand, eight hundred thirty-one".