1373742647 has 8 divisors (see below), whose sum is σ = 1463477616. Its totient is φ = 1284999552.

The previous prime is 1373742589. The next prime is 1373742653. The reversal of 1373742647 is 7462473731.

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 1373742647 - 2²² = 1369548343 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1373742598 and 1373742607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1373742677) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 245108 + ... + 250649.

It is an arithmetic number, because the mean of its divisors is an integer number (182934702).

Almost surely, 2^1373742647 is an apocalyptic number.

1373742647 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

1373742647 is a deficient number, since it is larger than the sum of its proper divisors (89734969).

1373742647 is a wasteful number, since it uses less digits than its factorization.

1373742647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 495937.

The product of its digits is 592704, while the sum is 44.

The square root of 1373742647 is about 37064.0344134310. The cubic root of 1373742647 is about 1111.6509930630.

The spelling of 1373742647 in words is "one billion, three hundred seventy-three million, seven hundred forty-two thousand, six hundred forty-seven".