612644958 has 20 divisors (see below), whose sum is σ = 1372778880. Its totient is φ = 204214932.

The previous prime is 612644897. The next prime is 612644983. The reversal of 612644958 is 859446216.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1890718 + ... + 1891041.

It is an arithmetic number, because the mean of its divisors is an integer number (68638944).

Almost surely, 2^612644958 is an apocalyptic number.

612644958 is an abundant number, since it is smaller than the sum of its proper divisors (760133922).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

612644958 is a wasteful number, since it uses less digits than its factorization.

612644958 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3781773 (or 3781764 counting only the distinct ones).

The product of its digits is 414720, while the sum is 45.

The square root of 612644958 is about 24751.6657621260. The cubic root of 612644958 is about 849.3166170417.

The spelling of 612644958 in words is "six hundred twelve million, six hundred forty-four thousand, nine hundred fifty-eight".