612597985 has 16 divisors (see below), whose sum is σ = 774132480. Its totient is φ = 464460480.

The previous prime is 612597983. The next prime is 612598013. The reversal of 612597985 is 589795216.

It is not a de Polignac number, because 612597985 - 2¹ = 612597983 is a prime.

It is not an unprimeable number, because it can be changed into a prime (612597983) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11901 + ... + 36970.

It is an arithmetic number, because the mean of its divisors is an integer number (48383280).

Almost surely, 2^612597985 is an apocalyptic number.

It is an amenable number.

612597985 is a deficient number, since it is larger than the sum of its proper divisors (161534495).

612597985 is a wasteful number, since it uses less digits than its factorization.

612597985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49008.

The product of its digits is 1360800, while the sum is 52.

The square root of 612597985 is about 24750.7168583053. The cubic root of 612597985 is about 849.2949100870.

The spelling of 612597985 in words is "six hundred twelve million, five hundred ninety-seven thousand, nine hundred eighty-five".