1372689317 has 2 divisors, whose sum is σ = 1372689318. Its totient is φ = 1372689316.

The previous prime is 1372689281. The next prime is 1372689359. The reversal of 1372689317 is 7139862731.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1141831681 + 230857636 = 33791^2 + 15194^2 .

It is a cyclic number.

It is not a de Polignac number, because 1372689317 - 2¹² = 1372685221 is a prime.

It is a super-2 number, since 2×1372689317² = 3768551922011852978, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1372689217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 686344658 + 686344659.

It is an arithmetic number, because the mean of its divisors is an integer number (686344659).

Almost surely, 2^1372689317 is an apocalyptic number.

It is an amenable number.

1372689317 is a deficient number, since it is larger than the sum of its proper divisors (1).

1372689317 is an equidigital number, since it uses as much as digits as its factorization.

1372689317 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 381024, while the sum is 47.

The square root of 1372689317 is about 37049.8220913407. The cubic root of 1372689317 is about 1111.3667974883.

The spelling of 1372689317 in words is "one billion, three hundred seventy-two million, six hundred eighty-nine thousand, three hundred seventeen".