86620740 has 24 divisors (see below), whose sum is σ = 242538240. Its totient is φ = 23098848.

The previous prime is 86620739. The next prime is 86620759. The reversal of 86620740 is 4702668.

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, 721780 + ... + 721899.

It is an arithmetic number, because the mean of its divisors is an integer number (10105760).

Almost surely, 2^86620740 is an apocalyptic number.

It is an amenable number.

86620740 is an abundant number, since it is smaller than the sum of its proper divisors (155917500).

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

86620740 is a wasteful number, since it uses less digits than its factorization.

86620740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1443691 (or 1443689 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 86620740 is about 9307.0263779577. The cubic root of 86620740 is about 442.4599472190.

The spelling of 86620740 in words is "eighty-six million, six hundred twenty thousand, seven hundred forty".