612203977 has 12 divisors (see below), whose sum is σ = 769050688. Its totient is φ = 477041400.

The previous prime is 612203951. The next prime is 612203987. The reversal of 612203977 is 779302216.

It is not a de Polignac number, because 612203977 - 2¹¹ = 612201929 is a prime.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (612203947) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 360549 + ... + 362242.

Almost surely, 2^612203977 is an apocalyptic number.

It is an amenable number.

612203977 is a deficient number, since it is larger than the sum of its proper divisors (156846711).

612203977 is a wasteful number, since it uses less digits than its factorization.

612203977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 722820 (or 722809 counting only the distinct ones).

The product of its (nonzero) digits is 31752, while the sum is 37.

The square root of 612203977 is about 24742.7560510142. The cubic root of 612203977 is about 849.1127891504.

The spelling of 612203977 in words is "six hundred twelve million, two hundred three thousand, nine hundred seventy-seven".