1370921679 has 14 divisors (see below), whose sum is σ = 2055443336. Its totient is φ = 913947300.

The previous prime is 1370921663. The next prime is 1370921689. The reversal of 1370921679 is 9761290731.

It is not a de Polignac number, because 1370921679 - 2⁴ = 1370921663 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1370921659) by changing a digit.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 939547 + ... + 941004.

Almost surely, 2^1370921679 is an apocalyptic number.

1370921679 is a deficient number, since it is larger than the sum of its proper divisors (684521657).

1370921679 is an frugal number, since it uses more digits than its factorization.

1370921679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1880569 (or 1880554 counting only the distinct ones).

The product of its (nonzero) digits is 142884, while the sum is 45.

The square root of 1370921679 is about 37025.9595284174. The cubic root of 1370921679 is about 1110.8895498932.

The spelling of 1370921679 in words is "one billion, three hundred seventy million, nine hundred twenty-one thousand, six hundred seventy-nine".