916928939 has 2 divisors, whose sum is σ = 916928940. Its totient is φ = 916928938.

The previous prime is 916928921. The next prime is 916928959. The reversal of 916928939 is 939829619.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 916928939 - 2¹² = 916924843 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (916928959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 458464469 + 458464470.

It is an arithmetic number, because the mean of its divisors is an integer number (458464470).

Almost surely, 2^916928939 is an apocalyptic number.

916928939 is a deficient number, since it is larger than the sum of its proper divisors (1).

916928939 is an equidigital number, since it uses as much as digits as its factorization.

916928939 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1889568, while the sum is 56.

The square root of 916928939 is about 30280.8345162415. The cubic root of 916928939 is about 971.5054170518.

The spelling of 916928939 in words is "nine hundred sixteen million, nine hundred twenty-eight thousand, nine hundred thirty-nine".