1039394613 has 8 divisors (see below), whose sum is σ = 1415346048. Its totient is φ = 678186464.

The previous prime is 1039394549. The next prime is 1039394617. The reversal of 1039394613 is 3164939301.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1039394613 - 2⁶ = 1039394549 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1039394617) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3685656 + ... + 3685937.

It is an arithmetic number, because the mean of its divisors is an integer number (176918256).

Almost surely, 2^1039394613 is an apocalyptic number.

It is an amenable number.

1039394613 is a deficient number, since it is larger than the sum of its proper divisors (375951435).

1039394613 is an equidigital number, since it uses as much as digits as its factorization.

1039394613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7371643.

The product of its (nonzero) digits is 52488, while the sum is 39.

The square root of 1039394613 is about 32239.6434998900. The cubic root of 1039394613 is about 1012.9627779926.

The spelling of 1039394613 in words is "one billion, thirty-nine million, three hundred ninety-four thousand, six hundred thirteen".