87400727 has 2 divisors, whose sum is σ = 87400728. Its totient is φ = 87400726.

The previous prime is 87400679. The next prime is 87400769. The reversal of 87400727 is 72700478.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 87400727 - 2⁸ = 87400471 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87400427) 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, 43700363 + 43700364.

It is an arithmetic number, because the mean of its divisors is an integer number (43700364).

Almost surely, 2^87400727 is an apocalyptic number.

87400727 is a deficient number, since it is larger than the sum of its proper divisors (1).

87400727 is an equidigital number, since it uses as much as digits as its factorization.

87400727 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21952, while the sum is 35.

The square root of 87400727 is about 9348.8355959446. The cubic root of 87400727 is about 443.7840423001.

The spelling of 87400727 in words is "eighty-seven million, four hundred thousand, seven hundred twenty-seven".