1379426697 has 24 divisors (see below), whose sum is σ = 2178042048. Its totient is φ = 834324000.

The previous prime is 1379426689. The next prime is 1379426701. The reversal of 1379426697 is 7966249731.

It is a happy number.

1379426697 is a `hidden beast` number, since 1 + 379 + 4 + 266 + 9 + 7 = 666.

It is not a de Polignac number, because 1379426697 - 2³ = 1379426689 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1379426677) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 35947 + ... + 63647.

It is an arithmetic number, because the mean of its divisors is an integer number (90751752).

Almost surely, 2^1379426697 is an apocalyptic number.

It is an amenable number.

1379426697 is a deficient number, since it is larger than the sum of its proper divisors (798615351).

1379426697 is a wasteful number, since it uses less digits than its factorization.

1379426697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28221 (or 28218 counting only the distinct ones).

The product of its digits is 3429216, while the sum is 54.

The square root of 1379426697 is about 37140.6340414377. The cubic root of 1379426697 is about 1113.1820864874.

The spelling of 1379426697 in words is "one billion, three hundred seventy-nine million, four hundred twenty-six thousand, six hundred ninety-seven".