969139393 has 4 divisors (see below), whose sum is σ = 969204528. Its totient is φ = 969074260.

The previous prime is 969139361. The next prime is 969139433. The reversal of 969139393 is 393931969.

969139393 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 969139393 - 2⁵ = 969139361 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 969139393.

It is not an unprimeable number, because it can be changed into a prime (969139343) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1938 + ... + 44068.

It is an arithmetic number, because the mean of its divisors is an integer number (242301132).

Almost surely, 2^969139393 is an apocalyptic number.

It is an amenable number.

969139393 is a deficient number, since it is larger than the sum of its proper divisors (65135).

969139393 is a wasteful number, since it uses less digits than its factorization.

969139393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65134.

The product of its digits is 1062882, while the sum is 52.

The square root of 969139393 is about 31131.0037261891. The cubic root of 969139393 is about 989.6054588794.

The spelling of 969139393 in words is "nine hundred sixty-nine million, one hundred thirty-nine thousand, three hundred ninety-three".