86472761 has 4 divisors (see below), whose sum is σ = 91559412. Its totient is φ = 81386112.

The previous prime is 86472739. The next prime is 86472769. The reversal of 86472761 is 16727468.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 78943225 + 7529536 = 8885^2 + 2744^2 .

It is a cyclic number.

It is not a de Polignac number, because 86472761 - 2⁶ = 86472697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86472769) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2543300 + ... + 2543333.

It is an arithmetic number, because the mean of its divisors is an integer number (22889853).

Almost surely, 2^86472761 is an apocalyptic number.

It is an amenable number.

86472761 is a deficient number, since it is larger than the sum of its proper divisors (5086651).

86472761 is a wasteful number, since it uses less digits than its factorization.

86472761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5086650.

The product of its digits is 112896, while the sum is 41.

The square root of 86472761 is about 9299.0731258551. The cubic root of 86472761 is about 442.2078440057.

The spelling of 86472761 in words is "eighty-six million, four hundred seventy-two thousand, seven hundred sixty-one".