87854247 has 32 divisors (see below), whose sum is σ = 140907200. Its totient is φ = 53778816.

The previous prime is 87854177. The next prime is 87854251. The reversal of 87854247 is 74245878.

It is not a de Polignac number, because 87854247 - 2⁸ = 87853991 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87854257) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 79833 + ... + 80925.

It is an arithmetic number, because the mean of its divisors is an integer number (4403350).

Almost surely, 2^87854247 is an apocalyptic number.

87854247 is a deficient number, since it is larger than the sum of its proper divisors (53052953).

87854247 is a wasteful number, since it uses less digits than its factorization.

87854247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1344 (or 1338 counting only the distinct ones).

The product of its digits is 501760, while the sum is 45.

The square root of 87854247 is about 9373.0596392000. The cubic root of 87854247 is about 444.5503128885.

The spelling of 87854247 in words is "eighty-seven million, eight hundred fifty-four thousand, two hundred forty-seven".