86761880 has 32 divisors (see below), whose sum is σ = 206699040. Its totient is φ = 32663040.

The previous prime is 86761877. The next prime is 86761889. The reversal of 86761880 is 8816768.

It is a super-2 number, since 2×86761880² = 15055247642268800, which contains 22 as substring.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86761889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63116 + ... + 64475.

It is an arithmetic number, because the mean of its divisors is an integer number (6459345).

Almost surely, 2^86761880 is an apocalyptic number.

It is an amenable number.

86761880 is an abundant number, since it is smaller than the sum of its proper divisors (119937160).

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

86761880 is a wasteful number, since it uses less digits than its factorization.

86761880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127619 (or 127615 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 44.

The square root of 86761880 is about 9314.6057350808. The cubic root of 86761880 is about 442.7001318428.

The spelling of 86761880 in words is "eighty-six million, seven hundred sixty-one thousand, eight hundred eighty".