612244899 has 20 divisors (see below), whose sum is σ = 1045244464. Its totient is φ = 349853904.

The previous prime is 612244877. The next prime is 612244901. The reversal of 612244899 is 998442216.

612244899 is a `hidden beast` number, since 612 + 24 + 4 + 8 + 9 + 9 = 666.

It is not a de Polignac number, because 612244899 - 2⁹ = 612244387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (612244819) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 539332 + ... + 540465.

Almost surely, 2^612244899 is an apocalyptic number.

612244899 is a deficient number, since it is larger than the sum of its proper divisors (432999565).

612244899 is a wasteful number, since it uses less digits than its factorization.

612244899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1079816 (or 1079807 counting only the distinct ones).

The product of its digits is 248832, while the sum is 45.

The square root of 612244899 is about 24743.5829863017. The cubic root of 612244899 is about 849.1317080188.

The spelling of 612244899 in words is "six hundred twelve million, two hundred forty-four thousand, eight hundred ninety-nine".