1372644697 has 2 divisors, whose sum is σ = 1372644698. Its totient is φ = 1372644696.

The previous prime is 1372644673. The next prime is 1372644703. The reversal of 1372644697 is 7964462731.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1338023241 + 34621456 = 36579^2 + 5884^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1372644697 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1372644697.

It is not a weakly prime, because it can be changed into another prime (1372644397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 686322348 + 686322349.

It is an arithmetic number, because the mean of its divisors is an integer number (686322349).

Almost surely, 2^1372644697 is an apocalyptic number.

It is an amenable number.

1372644697 is a deficient number, since it is larger than the sum of its proper divisors (1).

1372644697 is an equidigital number, since it uses as much as digits as its factorization.

1372644697 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1524096, while the sum is 49.

The square root of 1372644697 is about 37049.2199243115. The cubic root of 1372644697 is about 1111.3547555005.

The spelling of 1372644697 in words is "one billion, three hundred seventy-two million, six hundred forty-four thousand, six hundred ninety-seven".