1293677972 has 12 divisors (see below), whose sum is σ = 2265685716. Its totient is φ = 646339200.

The previous prime is 1293677939. The next prime is 1293677977. The reversal of 1293677972 is 2797763921.

It can be written as a sum of positive squares in 2 ways, for example, as 45751696 + 1247926276 = 6764^2 + 35326^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1293677977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 119093 + ... + 129500.

It is an arithmetic number, because the mean of its divisors is an integer number (188807143).

Almost surely, 2^1293677972 is an apocalyptic number.

It is an amenable number.

1293677972 is a deficient number, since it is larger than the sum of its proper divisors (972007744).

1293677972 is a wasteful number, since it uses less digits than its factorization.

1293677972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249898 (or 249896 counting only the distinct ones).

The product of its digits is 2000376, while the sum is 53.

The square root of 1293677972 is about 35967.7351524947. The cubic root of 1293677972 is about 1089.6208236993.

The spelling of 1293677972 in words is "one billion, two hundred ninety-three million, six hundred seventy-seven thousand, nine hundred seventy-two".