3609978839 has 6 divisors (see below), whose sum is σ = 3622649784. Its totient is φ = 3597315020.

The previous prime is 3609978829. The next prime is 3609978881. The reversal of 3609978839 is 9388799063.

It is not a de Polignac number, because 3609978839 - 2⁸ = 3609978583 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3609978829) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1057874 + ... + 1061280.

It is an arithmetic number, because the mean of its divisors is an integer number (603774964).

Almost surely, 2^3609978839 is an apocalyptic number.

3609978839 is a deficient number, since it is larger than the sum of its proper divisors (12670945).

3609978839 is an frugal number, since it uses more digits than its factorization.

3609978839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7125 (or 3718 counting only the distinct ones).

The product of its (nonzero) digits is 17635968, while the sum is 62.

The square root of 3609978839 is about 60083.0994456844. The cubic root of 3609978839 is about 1534.0336469816.

The spelling of 3609978839 in words is "three billion, six hundred nine million, nine hundred seventy-eight thousand, eight hundred thirty-nine".