1396693970 has 16 divisors (see below), whose sum is σ = 2873199168. Its totient is φ = 478866480.

The previous prime is 1396693957. The next prime is 1396694011. The reversal of 1396693970 is 793966931.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9976316 + ... + 9976455.

It is an arithmetic number, because the mean of its divisors is an integer number (179574948).

Almost surely, 2^1396693970 is an apocalyptic number.

1396693970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1396693970 is an abundant number, since it is smaller than the sum of its proper divisors (1476505198).

1396693970 is a wasteful number, since it uses less digits than its factorization.

1396693970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19952785.

The product of its (nonzero) digits is 1653372, while the sum is 53.

The square root of 1396693970 is about 37372.3690712805. The cubic root of 1396693970 is about 1117.8076720245.

The spelling of 1396693970 in words is "one billion, three hundred ninety-six million, six hundred ninety-three thousand, nine hundred seventy".