916679447 has 4 divisors (see below), whose sum is σ = 918105720. Its totient is φ = 915253176.

The previous prime is 916679417. The next prime is 916679471. The reversal of 916679447 is 744976619.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-916679447 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (916679417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 712172 + ... + 713457.

It is an arithmetic number, because the mean of its divisors is an integer number (229526430).

Almost surely, 2^916679447 is an apocalyptic number.

916679447 is a deficient number, since it is larger than the sum of its proper divisors (1426273).

916679447 is a wasteful number, since it uses less digits than its factorization.

916679447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1426272.

The product of its digits is 2286144, while the sum is 53.

The square root of 916679447 is about 30276.7146004979. The cubic root of 916679447 is about 971.4172950588.

The spelling of 916679447 in words is "nine hundred sixteen million, six hundred seventy-nine thousand, four hundred forty-seven".