916415947 has 8 divisors (see below), whose sum is σ = 919775952. Its totient is φ = 913063200.

The previous prime is 916415897. The next prime is 916415953. The reversal of 916415947 is 749514619.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 916415947 - 2²³ = 908027339 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 916415897 and 916415906.

It is not an unprimeable number, because it can be changed into a prime (916415987) 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 7 ways as a sum of consecutive naturals, for example, 383697 + ... + 386077.

It is an arithmetic number, because the mean of its divisors is an integer number (114971994).

Almost surely, 2^916415947 is an apocalyptic number.

916415947 is a deficient number, since it is larger than the sum of its proper divisors (3360005).

916415947 is a wasteful number, since it uses less digits than its factorization.

916415947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3629.

The product of its digits is 272160, while the sum is 46.

The square root of 916415947 is about 30272.3627587937. The cubic root of 916415947 is about 971.3242079976.

The spelling of 916415947 in words is "nine hundred sixteen million, four hundred fifteen thousand, nine hundred forty-seven".