86840761 has 8 divisors (see below), whose sum is σ = 102669120. Its totient is φ = 71868048.

The previous prime is 86840753. The next prime is 86840797. The reversal of 86840761 is 16704868.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 86840761 - 2³ = 86840753 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86840701) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 213691 + ... + 214096.

It is an arithmetic number, because the mean of its divisors is an integer number (12833640).

Almost surely, 2^86840761 is an apocalyptic number.

It is an amenable number.

86840761 is a deficient number, since it is larger than the sum of its proper divisors (15828359).

86840761 is a wasteful number, since it uses less digits than its factorization.

86840761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 427823.

The product of its (nonzero) digits is 64512, while the sum is 40.

The square root of 86840761 is about 9318.8390371333. The cubic root of 86840761 is about 442.8342539233.

The spelling of 86840761 in words is "eighty-six million, eight hundred forty thousand, seven hundred sixty-one".