916806249 has 8 divisors (see below), whose sum is σ = 1358231520. Its totient is φ = 611204148.

The previous prime is 916806229. The next prime is 916806323. The reversal of 916806249 is 942608619.

It is a happy number.

916806249 is a `hidden beast` number, since 9 + 16 + 8 + 0 + 624 + 9 = 666.

It is not a de Polignac number, because 916806249 - 2⁵ = 916806217 is a prime.

It is not an unprimeable number, because it can be changed into a prime (916806229) 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, 16977867 + ... + 16977920.

It is an arithmetic number, because the mean of its divisors is an integer number (169778940).

Almost surely, 2^916806249 is an apocalyptic number.

It is an amenable number.

916806249 is a deficient number, since it is larger than the sum of its proper divisors (441425271).

916806249 is a wasteful number, since it uses less digits than its factorization.

916806249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33955796 (or 33955790 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 45.

The square root of 916806249 is about 30278.8085795990. The cubic root of 916806249 is about 971.4620842440.

The spelling of 916806249 in words is "nine hundred sixteen million, eight hundred six thousand, two hundred forty-nine".