1377973798 has 8 divisors (see below), whose sum is σ = 2073694392. Its totient is φ = 686742336.

The previous prime is 1377973787. The next prime is 1377973813. The reversal of 1377973798 is 8973797731.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1121515 + ... + 1122742.

It is an arithmetic number, because the mean of its divisors is an integer number (259211799).

Almost surely, 2^1377973798 is an apocalyptic number.

1377973798 is a deficient number, since it is larger than the sum of its proper divisors (695720594).

1377973798 is a wasteful number, since it uses less digits than its factorization.

1377973798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2244566.

The product of its digits is 14002632, while the sum is 61.

The square root of 1377973798 is about 37121.0694619646. The cubic root of 1377973798 is about 1112.7911247193.

The spelling of 1377973798 in words is "one billion, three hundred seventy-seven million, nine hundred seventy-three thousand, seven hundred ninety-eight".