869642613 has 12 divisors (see below), whose sum is σ = 1435600608. Its totient is φ = 496938600.

The previous prime is 869642611. The next prime is 869642617. The reversal of 869642613 is 316246968.

It is not a de Polignac number, because 869642613 - 2¹ = 869642611 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (869642611) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6901863 + ... + 6901988.

It is an arithmetic number, because the mean of its divisors is an integer number (119633384).

Almost surely, 2^869642613 is an apocalyptic number.

It is an amenable number.

869642613 is a deficient number, since it is larger than the sum of its proper divisors (565957995).

869642613 is a wasteful number, since it uses less digits than its factorization.

869642613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13803864 (or 13803861 counting only the distinct ones).

The product of its digits is 373248, while the sum is 45.

The square root of 869642613 is about 29489.7035081738. The cubic root of 869642613 is about 954.5095342500.

The spelling of 869642613 in words is "eight hundred sixty-nine million, six hundred forty-two thousand, six hundred thirteen".