612353997 has 24 divisors (see below), whose sum is σ = 912117024. Its totient is φ = 395682144.

The previous prime is 612353993. The next prime is 612354007. The reversal of 612353997 is 799353216.

612353997 is a `hidden beast` number, since 6 + 1 + 23 + 539 + 97 = 666.

It is not a de Polignac number, because 612353997 - 2² = 612353993 is a prime.

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 not an unprimeable number, because it can be changed into a prime (612353993) 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 23 ways as a sum of consecutive naturals, for example, 31858 + ... + 47324.

It is an arithmetic number, because the mean of its divisors is an integer number (38004876).

Almost surely, 2^612353997 is an apocalyptic number.

It is an amenable number.

612353997 is a deficient number, since it is larger than the sum of its proper divisors (299763027).

612353997 is a wasteful number, since it uses less digits than its factorization.

612353997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15609 (or 15606 counting only the distinct ones).

The product of its digits is 306180, while the sum is 45.

The square root of 612353997 is about 24745.7874596870. The cubic root of 612353997 is about 849.1821415785.

The spelling of 612353997 in words is "six hundred twelve million, three hundred fifty-three thousand, nine hundred ninety-seven".