87391827 has 12 divisors (see below), whose sum is σ = 127351224. Its totient is φ = 57744960.

The previous prime is 87391823. The next prime is 87391831. The reversal of 87391827 is 72819378.

It is an interprime number because it is at equal distance from previous prime (87391823) and next prime (87391831).

It is not a de Polignac number, because 87391827 - 2² = 87391823 is a prime.

It is not an unprimeable number, because it can be changed into a prime (87391823) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 41949 + ... + 43982.

It is an arithmetic number, because the mean of its divisors is an integer number (10612602).

Almost surely, 2^87391827 is an apocalyptic number.

87391827 is a deficient number, since it is larger than the sum of its proper divisors (39959397).

87391827 is a wasteful number, since it uses less digits than its factorization.

87391827 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86050 (or 86047 counting only the distinct ones).

The product of its digits is 169344, while the sum is 45.

The square root of 87391827 is about 9348.3595887193. The cubic root of 87391827 is about 443.7689783062.

The spelling of 87391827 in words is "eighty-seven million, three hundred ninety-one thousand, eight hundred twenty-seven".