86467640 has 32 divisors (see below), whose sum is σ = 222346080. Its totient is φ = 29645952.

The previous prime is 86467637. The next prime is 86467669. The reversal of 86467640 is 4676468.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 154127 + ... + 154686.

It is an arithmetic number, because the mean of its divisors is an integer number (6948315).

Almost surely, 2^86467640 is an apocalyptic number.

It is an amenable number.

86467640 is an abundant number, since it is smaller than the sum of its proper divisors (135878440).

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

86467640 is a wasteful number, since it uses less digits than its factorization.

86467640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308831 (or 308827 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 41.

The square root of 86467640 is about 9298.7977717552. The cubic root of 86467640 is about 442.1991145089.

The spelling of 86467640 in words is "eighty-six million, four hundred sixty-seven thousand, six hundred forty".