86231550 has 48 divisors (see below), whose sum is σ = 214486272. Its totient is φ = 22927200.

The previous prime is 86231533. The next prime is 86231573. The reversal of 86231550 is 5513268.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 69435 + ... + 70665.

It is an arithmetic number, because the mean of its divisors is an integer number (4468464).

Almost surely, 2^86231550 is an apocalyptic number.

86231550 is an abundant number, since it is smaller than the sum of its proper divisors (128254722).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

86231550 is a wasteful number, since it uses less digits than its factorization.

86231550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1713 (or 1708 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 86231550 is about 9286.0944427676. The cubic root of 86231550 is about 441.7962896307.

The spelling of 86231550 in words is "eighty-six million, two hundred thirty-one thousand, five hundred fifty".