86667761 has 4 divisors (see below), whose sum is σ = 86917872. Its totient is φ = 86417652.

The previous prime is 86667743. The next prime is 86667767. The reversal of 86667761 is 16776668.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 86667761 - 2²⁶ = 19558897 is a prime.

It is a super-2 number, since 2×86667761² = 15022601593506242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86667767) 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, 124535 + ... + 125228.

It is an arithmetic number, because the mean of its divisors is an integer number (21729468).

Almost surely, 2^86667761 is an apocalyptic number.

It is an amenable number.

86667761 is a deficient number, since it is larger than the sum of its proper divisors (250111).

86667761 is a wasteful number, since it uses less digits than its factorization.

86667761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250110.

The product of its digits is 508032, while the sum is 47.

The square root of 86667761 is about 9309.5521374554. The cubic root of 86667761 is about 442.5399940444.

The spelling of 86667761 in words is "eighty-six million, six hundred sixty-seven thousand, seven hundred sixty-one".