612400499 has 4 divisors (see below), whose sum is σ = 612486336. Its totient is φ = 612314664.

The previous prime is 612400487. The next prime is 612400513. The reversal of 612400499 is 994004216.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-612400499 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (612400409) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31139 + ... + 46844.

It is an arithmetic number, because the mean of its divisors is an integer number (153121584).

Almost surely, 2^612400499 is an apocalyptic number.

612400499 is a deficient number, since it is larger than the sum of its proper divisors (85837).

612400499 is an equidigital number, since it uses as much as digits as its factorization.

612400499 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85836.

The product of its (nonzero) digits is 15552, while the sum is 35.

The square root of 612400499 is about 24746.7270361153. The cubic root of 612400499 is about 849.2036365899.

The spelling of 612400499 in words is "six hundred twelve million, four hundred thousand, four hundred ninety-nine".