87548831 has 2 divisors, whose sum is σ = 87548832. Its totient is φ = 87548830.

The previous prime is 87548779. The next prime is 87548843. The reversal of 87548831 is 13884578.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 87548831 - 2¹⁴ = 87532447 is a prime.

It is a super-2 number, since 2×87548831² = 15329595618933122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87748831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43774415 + 43774416.

It is an arithmetic number, because the mean of its divisors is an integer number (43774416).

Almost surely, 2^87548831 is an apocalyptic number.

87548831 is a deficient number, since it is larger than the sum of its proper divisors (1).

87548831 is an equidigital number, since it uses as much as digits as its factorization.

87548831 is an evil number, because the sum of its binary digits is even.

The product of its digits is 215040, while the sum is 44.

The square root of 87548831 is about 9356.7532296198. The cubic root of 87548831 is about 444.0345707330.

The spelling of 87548831 in words is "eighty-seven million, five hundred forty-eight thousand, eight hundred thirty-one".