87054731 has 2 divisors, whose sum is σ = 87054732. Its totient is φ = 87054730.

The previous prime is 87054719. The next prime is 87054749. The reversal of 87054731 is 13745078.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 87054731 - 2²⁶ = 19945867 is a prime.

It is a super-2 number, since 2×87054731² = 15157052378964722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 87054691 and 87054700.

It is not a weakly prime, because it can be changed into another prime (87054031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43527365 + 43527366.

It is an arithmetic number, because the mean of its divisors is an integer number (43527366).

Almost surely, 2^87054731 is an apocalyptic number.

87054731 is a deficient number, since it is larger than the sum of its proper divisors (1).

87054731 is an equidigital number, since it uses as much as digits as its factorization.

87054731 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23520, while the sum is 35.

The square root of 87054731 is about 9330.3124813695. The cubic root of 87054731 is about 443.1976605718.

The spelling of 87054731 in words is "eighty-seven million, fifty-four thousand, seven hundred thirty-one".