916870907 has 4 divisors (see below), whose sum is σ = 918834696. Its totient is φ = 914907120.

The previous prime is 916870901. The next prime is 916870921. The reversal of 916870907 is 709078619.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 916870907 - 2⁴ = 916870891 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (916870901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 981194 + ... + 982127.

It is an arithmetic number, because the mean of its divisors is an integer number (229708674).

Almost surely, 2^916870907 is an apocalyptic number.

916870907 is a deficient number, since it is larger than the sum of its proper divisors (1963789).

916870907 is a wasteful number, since it uses less digits than its factorization.

916870907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1963788.

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

The square root of 916870907 is about 30279.8762712135. The cubic root of 916870907 is about 971.4849212462.

The spelling of 916870907 in words is "nine hundred sixteen million, eight hundred seventy thousand, nine hundred seven".