1397295563 has 8 divisors (see below), whose sum is σ = 1467707136. Its totient is φ = 1327689000.

The previous prime is 1397295553. The next prime is 1397295577. The reversal of 1397295563 is 3655927931.

It is a happy number.

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 1397295563 - 2⁴ = 1397295547 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1397295503) 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, 197693 + ... + 204638.

It is an arithmetic number, because the mean of its divisors is an integer number (183463392).

Almost surely, 2^1397295563 is an apocalyptic number.

1397295563 is a deficient number, since it is larger than the sum of its proper divisors (70411573).

1397295563 is a wasteful number, since it uses less digits than its factorization.

1397295563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 402505.

The product of its digits is 1530900, while the sum is 50.

The square root of 1397295563 is about 37380.4168382323. The cubic root of 1397295563 is about 1117.9681387549.

The spelling of 1397295563 in words is "one billion, three hundred ninety-seven million, two hundred ninety-five thousand, five hundred sixty-three".