1393797964 has 24 divisors (see below), whose sum is σ = 2633053808. Its totient is φ = 641753280.

The previous prime is 1393797941. The next prime is 1393797997. The reversal of 1393797964 is 4697973931.

It is a junction number, because it is equal to n+sod(n) for n = 1393797899 and 1393797908.

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, 9942 + ... + 53725.

Almost surely, 2^1393797964 is an apocalyptic number.

It is an amenable number.

1393797964 is a deficient number, since it is larger than the sum of its proper divisors (1239255844).

1393797964 is a wasteful number, since it uses less digits than its factorization.

1393797964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64105 (or 64103 counting only the distinct ones).

The product of its digits is 7715736, while the sum is 58.

The square root of 1393797964 is about 37333.6036835449. The cubic root of 1393797964 is about 1117.0345564208.

It can be divided in two parts, 1393797 and 964, that added together give a square (1394761 = 1181²).

The spelling of 1393797964 in words is "one billion, three hundred ninety-three million, seven hundred ninety-seven thousand, nine hundred sixty-four".