612564797 has 8 divisors (see below), whose sum is σ = 666487416. Its totient is φ = 559613952.

The previous prime is 612564787. The next prime is 612564809. The reversal of 612564797 is 797465216.

It can be written as a sum of positive squares in 4 ways, for example, as 9665881 + 602898916 = 3109^2 + 24554^2 .

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

It is not a de Polignac number, because 612564797 - 2¹² = 612560701 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (612564707) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 241628 + ... + 244149.

It is an arithmetic number, because the mean of its divisors is an integer number (83310927).

Almost surely, 2^612564797 is an apocalyptic number.

It is an amenable number.

612564797 is a deficient number, since it is larger than the sum of its proper divisors (53922619).

612564797 is a wasteful number, since it uses less digits than its factorization.

612564797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 485887.

The product of its digits is 635040, while the sum is 47.

The square root of 612564797 is about 24750.0464039969. The cubic root of 612564797 is about 849.2795727264.

The spelling of 612564797 in words is "six hundred twelve million, five hundred sixty-four thousand, seven hundred ninety-seven".