87900487 has 2 divisors, whose sum is σ = 87900488. Its totient is φ = 87900486.

The previous prime is 87900467. The next prime is 87900497. The reversal of 87900487 is 78400978.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 87900487 - 2⁷ = 87900359 is a prime.

It is a super-2 number, since 2×87900487² = 15452991229674338, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87900467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43950243 + 43950244.

It is an arithmetic number, because the mean of its divisors is an integer number (43950244).

Almost surely, 2^87900487 is an apocalyptic number.

87900487 is a deficient number, since it is larger than the sum of its proper divisors (1).

87900487 is an equidigital number, since it uses as much as digits as its factorization.

87900487 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 112896, while the sum is 43.

The square root of 87900487 is about 9375.5259585796. The cubic root of 87900487 is about 444.6282920484.

The spelling of 87900487 in words is "eighty-seven million, nine hundred thousand, four hundred eighty-seven".