86751690 has 32 divisors (see below), whose sum is σ = 208673280. Its totient is φ = 23081664.

The previous prime is 86751689. The next prime is 86751713. The reversal of 86751690 is 9615768.

It is a super-2 number, since 2×86751690² = 15051711435712200, which contains 22 as substring.

It is a Curzon 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, 11352 + ... + 17388.

It is an arithmetic number, because the mean of its divisors is an integer number (6521040).

Almost surely, 2^86751690 is an apocalyptic number.

86751690 is an abundant number, since it is smaller than the sum of its proper divisors (121921590).

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

86751690 is a wasteful number, since it uses less digits than its factorization.

86751690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6526.

The product of its (nonzero) digits is 90720, while the sum is 42.

The square root of 86751690 is about 9314.0587286102. The cubic root of 86751690 is about 442.6827997650.

The spelling of 86751690 in words is "eighty-six million, seven hundred fifty-one thousand, six hundred ninety".