611672838 has 32 divisors (see below), whose sum is σ = 1404290304. Its totient is φ = 173991072.

The previous prime is 611672827. The next prime is 611672839. The reversal of 611672838 is 838276116.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a self number, because there is not a number n which added to its sum of digits gives 611672838.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (611672839) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22545 + ... + 41612.

It is an arithmetic number, because the mean of its divisors is an integer number (43884072).

Almost surely, 2^611672838 is an apocalyptic number.

611672838 is an abundant number, since it is smaller than the sum of its proper divisors (792617466).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

611672838 is a wasteful number, since it uses less digits than its factorization.

611672838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64396.

The product of its digits is 96768, while the sum is 42.

The square root of 611672838 is about 24732.0204997489. The cubic root of 611672838 is about 848.8671589228.

The spelling of 611672838 in words is "six hundred eleven million, six hundred seventy-two thousand, eight hundred thirty-eight".