1374628709 has 2 divisors, whose sum is σ = 1374628710. Its totient is φ = 1374628708.

The previous prime is 1374628667. The next prime is 1374628751. The reversal of 1374628709 is 9078264731.

It is a balanced prime because it is at equal distance from previous prime (1374628667) and next prime (1374628751).

It can be written as a sum of positive squares in only one way, i.e., 1200969025 + 173659684 = 34655^2 + 13178^2 .

It is a cyclic number.

It is not a de Polignac number, because 1374628709 - 2²⁰ = 1373580133 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1374628769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 687314354 + 687314355.

It is an arithmetic number, because the mean of its divisors is an integer number (687314355).

Almost surely, 2^1374628709 is an apocalyptic number.

It is an amenable number.

1374628709 is a deficient number, since it is larger than the sum of its proper divisors (1).

1374628709 is an equidigital number, since it uses as much as digits as its factorization.

1374628709 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 508032, while the sum is 47.

The square root of 1374628709 is about 37075.9856106348. The cubic root of 1374628709 is about 1111.8899461176.

The spelling of 1374628709 in words is "one billion, three hundred seventy-four million, six hundred twenty-eight thousand, seven hundred nine".