1397935745 has 8 divisors (see below), whose sum is σ = 1750458816. Its totient is φ = 1069724656.

The previous prime is 1397935733. The next prime is 1397935751. The reversal of 1397935745 is 5475397931.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1397935745 - 2⁴ = 1397935729 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6077867 + ... + 6078096.

It is an arithmetic number, because the mean of its divisors is an integer number (218807352).

Almost surely, 2^1397935745 is an apocalyptic number.

It is an amenable number.

1397935745 is a deficient number, since it is larger than the sum of its proper divisors (352523071).

1397935745 is a wasteful number, since it uses less digits than its factorization.

1397935745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12155991.

The product of its digits is 3572100, while the sum is 53.

The square root of 1397935745 is about 37388.9789242766. The cubic root of 1397935745 is about 1118.1388479983.

The spelling of 1397935745 in words is "one billion, three hundred ninety-seven million, nine hundred thirty-five thousand, seven hundred forty-five".