86651901 has 24 divisors (see below), whose sum is σ = 146537664. Its totient is φ = 48306240.

The previous prime is 86651897. The next prime is 86651921. The reversal of 86651901 is 10915668.

It is not a de Polignac number, because 86651901 - 2² = 86651897 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86651921) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14191 + ... + 19356.

It is an arithmetic number, because the mean of its divisors is an integer number (6105736).

Almost surely, 2^86651901 is an apocalyptic number.

It is an amenable number.

86651901 is a deficient number, since it is larger than the sum of its proper divisors (59885763).

86651901 is a wasteful number, since it uses less digits than its factorization.

86651901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33601 (or 33598 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 36.

The square root of 86651901 is about 9308.7002852171. The cubic root of 86651901 is about 442.5129977988.

The spelling of 86651901 in words is "eighty-six million, six hundred fifty-one thousand, nine hundred one".