1397307682 has 8 divisors (see below), whose sum is σ = 2116310976. Its totient is φ = 691870692.

The previous prime is 1397307649. The next prime is 1397307683. The reversal of 1397307682 is 2867037931.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (1397307683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3391318 + ... + 3391729.

It is an arithmetic number, because the mean of its divisors is an integer number (264538872).

Almost surely, 2^1397307682 is an apocalyptic number.

1397307682 is a deficient number, since it is larger than the sum of its proper divisors (719003294).

1397307682 is a wasteful number, since it uses less digits than its factorization.

1397307682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6783152.

The product of its (nonzero) digits is 381024, while the sum is 46.

The square root of 1397307682 is about 37380.5789414771. The cubic root of 1397307682 is about 1117.9713708596.

The spelling of 1397307682 in words is "one billion, three hundred ninety-seven million, three hundred seven thousand, six hundred eighty-two".