100797986 has 16 divisors (see below), whose sum is σ = 156954240. Its totient is φ = 48515280.

The previous prime is 100797979. The next prime is 100797989. The reversal of 100797986 is 689797001.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a self number, because there is not a number n which added to its sum of digits gives 100797986.

It is not an unprimeable number, because it can be changed into a prime (100797989) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3056 + ... + 14523.

It is an arithmetic number, because the mean of its divisors is an integer number (9809640).

Almost surely, 2^100797986 is an apocalyptic number.

100797986 is a deficient number, since it is larger than the sum of its proper divisors (56156254).

100797986 is a wasteful number, since it uses less digits than its factorization.

100797986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17689.

The product of its (nonzero) digits is 190512, while the sum is 47.

The square root of 100797986 is about 10039.8200183071. The cubic root of 100797986 is about 465.3902547251.

The spelling of 100797986 in words is "one hundred million, seven hundred ninety-seven thousand, nine hundred eighty-six".