1396789718 has 16 divisors (see below), whose sum is σ = 2152679760. Its totient is φ = 679474176.

The previous prime is 1396789711. The next prime is 1396789721. The reversal of 1396789718 is 8179876931.

It is a Harshad number since it is a multiple of its sum of digits (59).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1396789711) 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, 49571 + ... + 72462.

It is an arithmetic number, because the mean of its divisors is an integer number (134542485).

Almost surely, 2^1396789718 is an apocalyptic number.

1396789718 is a deficient number, since it is larger than the sum of its proper divisors (755890042).

1396789718 is a wasteful number, since it uses less digits than its factorization.

1396789718 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122191.

The product of its digits is 4572288, while the sum is 59.

The square root of 1396789718 is about 37373.6500491991. The cubic root of 1396789718 is about 1117.8332145808.

The spelling of 1396789718 in words is "one billion, three hundred ninety-six million, seven hundred eighty-nine thousand, seven hundred eighteen".