612979316 has 6 divisors (see below), whose sum is σ = 1072713810. Its totient is φ = 306489656.

The previous prime is 612979307. The next prime is 612979327. The reversal of 612979316 is 613979216.

It can be written as a sum of positive squares in only one way, i.e., 499343716 + 113635600 = 22346^2 + 10660^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76622411 + ... + 76622418.

It is an arithmetic number, because the mean of its divisors is an integer number (178785635).

Almost surely, 2^612979316 is an apocalyptic number.

It is an amenable number.

612979316 is a deficient number, since it is larger than the sum of its proper divisors (459734494).

612979316 is a wasteful number, since it uses less digits than its factorization.

612979316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153244833 (or 153244831 counting only the distinct ones).

The product of its digits is 122472, while the sum is 44.

The square root of 612979316 is about 24758.4190933105. The cubic root of 612979316 is about 849.4710970312.

The spelling of 612979316 in words is "six hundred twelve million, nine hundred seventy-nine thousand, three hundred sixteen".