1396563273 has 24 divisors (see below), whose sum is σ = 2309548800. Its totient is φ = 796613184.

The previous prime is 1396563269. The next prime is 1396563307. The reversal of 1396563273 is 3723656931.

1396563273 is a `hidden beast` number, since 1 + 3 + 9 + 6 + 5 + 632 + 7 + 3 = 666.

It is not a de Polignac number, because 1396563273 - 2² = 1396563269 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1396563253) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16368 + ... + 55326.

It is an arithmetic number, because the mean of its divisors is an integer number (96231200).

Almost surely, 2^1396563273 is an apocalyptic number.

It is an amenable number.

1396563273 is a deficient number, since it is larger than the sum of its proper divisors (912985527).

1396563273 is a wasteful number, since it uses less digits than its factorization.

1396563273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39541 (or 39538 counting only the distinct ones).

The product of its digits is 612360, while the sum is 45.

The square root of 1396563273 is about 37370.6204524356. The cubic root of 1396563273 is about 1117.7728042893.

The spelling of 1396563273 in words is "one billion, three hundred ninety-six million, five hundred sixty-three thousand, two hundred seventy-three".