1396993615 has 16 divisors (see below), whose sum is σ = 1818300960. Its totient is φ = 1026196480.

The previous prime is 1396993613. The next prime is 1396993679. The reversal of 1396993615 is 5163996931.

It is not a de Polignac number, because 1396993615 - 2¹ = 1396993613 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1396993613) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 196945 + ... + 203914.

It is an arithmetic number, because the mean of its divisors is an integer number (113643810).

Almost surely, 2^1396993615 is an apocalyptic number.

1396993615 is a deficient number, since it is larger than the sum of its proper divisors (421307345).

1396993615 is a wasteful number, since it uses less digits than its factorization.

1396993615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400922.

The product of its digits is 1180980, while the sum is 52.

The square root of 1396993615 is about 37376.3777672476. The cubic root of 1396993615 is about 1117.8876040012.

It can be divided in two parts, 13969 and 93615, that added together give a square (107584 = 328²).

The spelling of 1396993615 in words is "one billion, three hundred ninety-six million, nine hundred ninety-three thousand, six hundred fifteen".