86261880 has 64 divisors (see below), whose sum is σ = 259524000. Its totient is φ = 22937600.

The previous prime is 86261867. The next prime is 86261969. The reversal of 86261880 is 8816268.

It is a super-2 number, since 2×86261880² = 14882223882268800, which contains 22 as substring.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53080 + ... + 54680.

Almost surely, 2^86261880 is an apocalyptic number.

It is an amenable number.

86261880 is an abundant number, since it is smaller than the sum of its proper divisors (173262120).

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

86261880 is a wasteful number, since it uses less digits than its factorization.

86261880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2064 (or 2060 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 39.

The square root of 86261880 is about 9287.7273861801. The cubic root of 86261880 is about 441.8480808477.

The spelling of 86261880 in words is "eighty-six million, two hundred sixty-one thousand, eight hundred eighty".