79209044 has 6 divisors (see below), whose sum is σ = 138615834. Its totient is φ = 39604520.

The previous prime is 79209041. The next prime is 79209047. The reversal of 79209044 is 44090297.

It is an interprime number because it is at equal distance from previous prime (79209041) and next prime (79209047).

It can be written as a sum of positive squares in only one way, i.e., 72250000 + 6959044 = 8500^2 + 2638^2 .

It is a junction number, because it is equal to n+sod(n) for n = 79208995 and 79209013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79209041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9901127 + ... + 9901134.

It is an arithmetic number, because the mean of its divisors is an integer number (23102639).

Almost surely, 2^79209044 is an apocalyptic number.

It is an amenable number.

79209044 is a deficient number, since it is larger than the sum of its proper divisors (59406790).

79209044 is a wasteful number, since it uses less digits than its factorization.

79209044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19802265 (or 19802263 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 79209044 is about 8899.9462919728. The cubic root of 79209044 is about 429.4621795963.

The spelling of 79209044 in words is "seventy-nine million, two hundred nine thousand, forty-four".