913216986 has 48 divisors (see below), whose sum is σ = 2195125920. Its totient is φ = 272038560.

The previous prime is 913216973. The next prime is 913216987. The reversal of 913216986 is 689612319.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (913216987) 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, 27405 + ... + 50768.

It is an arithmetic number, because the mean of its divisors is an integer number (45731790).

Almost surely, 2^913216986 is an apocalyptic number.

913216986 is an abundant number, since it is smaller than the sum of its proper divisors (1281908934).

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

913216986 is a wasteful number, since it uses less digits than its factorization.

913216986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78251 (or 78248 counting only the distinct ones).

The product of its digits is 139968, while the sum is 45.

The square root of 913216986 is about 30219.4802404012. The cubic root of 913216986 is about 970.1926800430.

The spelling of 913216986 in words is "nine hundred thirteen million, two hundred sixteen thousand, nine hundred eighty-six".