1297682984 has 16 divisors (see below), whose sum is σ = 2620321620. Its totient is φ = 598930560.

The previous prime is 1297682959. The next prime is 1297682989. The reversal of 1297682984 is 4892867921.

It can be written as a sum of positive squares in 2 ways, for example, as 1199236900 + 98446084 = 34630^2 + 9922^2 .

It is a super-2 number, since 2×1297682984² = 3367962253926288512, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1297682989) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6238757 + ... + 6238964.

Almost surely, 2^1297682984 is an apocalyptic number.

It is an amenable number.

1297682984 is an abundant number, since it is smaller than the sum of its proper divisors (1322638636).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1297682984 is a wasteful number, since it uses less digits than its factorization.

1297682984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12477740 (or 12477736 counting only the distinct ones).

The product of its digits is 3483648, while the sum is 56.

The square root of 1297682984 is about 36023.3671940867. The cubic root of 1297682984 is about 1090.7440936704.

The spelling of 1297682984 in words is "one billion, two hundred ninety-seven million, six hundred eighty-two thousand, nine hundred eighty-four".