1397734 has 8 divisors (see below), whose sum is σ = 2257920. Its totient is φ = 645096.

The previous prime is 1397729. The next prime is 1397743. The reversal of 1397734 is 4377931.

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

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 1397734.

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, 26854 + ... + 26905.

It is an arithmetic number, because the mean of its divisors is an integer number (282240).

2^1397734 is an apocalyptic number.

1397734 is a deficient number, since it is larger than the sum of its proper divisors (860186).

1397734 is a wasteful number, since it uses less digits than its factorization.

1397734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53774.

The product of its digits is 15876, while the sum is 34.

The square root of 1397734 is about 1182.2580090657. The cubic root of 1397734 is about 111.8085056834.

The spelling of 1397734 in words is "one million, three hundred ninety-seven thousand, seven hundred thirty-four".