612320577 has 8 divisors (see below), whose sum is σ = 890648160. Its totient is φ = 371103360.

The previous prime is 612320573. The next prime is 612320617. The reversal of 612320577 is 775023216.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 612320577 - 2² = 612320573 is a prime.

It is a super-2 number, since 2×612320577² = 749872978035225858, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 18555169 = 612320577 / (6 + 1 + 2 + 3 + 2 + 0 + 5 + 7 + 7).

It is not an unprimeable number, because it can be changed into a prime (612320573) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9277552 + ... + 9277617.

It is an arithmetic number, because the mean of its divisors is an integer number (111331020).

Almost surely, 2^612320577 is an apocalyptic number.

It is an amenable number.

612320577 is a deficient number, since it is larger than the sum of its proper divisors (278327583).

612320577 is a wasteful number, since it uses less digits than its factorization.

612320577 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18555183.

The product of its (nonzero) digits is 17640, while the sum is 33.

The square root of 612320577 is about 24745.1121840254. The cubic root of 612320577 is about 849.1666928982.

The spelling of 612320577 in words is "six hundred twelve million, three hundred twenty thousand, five hundred seventy-seven".