612843998 has 64 divisors (see below), whose sum is σ = 1053803520. Its totient is φ = 265410432.

The previous prime is 612843989. The next prime is 612844009. The reversal of 612843998 is 899348216.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5622368 + ... + 5622476.

It is an arithmetic number, because the mean of its divisors is an integer number (16465680).

Almost surely, 2^612843998 is an apocalyptic number.

612843998 is a deficient number, since it is larger than the sum of its proper divisors (440959522).

612843998 is a wasteful number, since it uses less digits than its factorization.

612843998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 321.

The product of its digits is 746496, while the sum is 50.

The square root of 612843998 is about 24755.6861750992. The cubic root of 612843998 is about 849.4085842153.

The spelling of 612843998 in words is "six hundred twelve million, eight hundred forty-three thousand, nine hundred ninety-eight".