1397754 has 48 divisors (see below), whose sum is σ = 3288480. Its totient is φ = 427680.

The previous prime is 1397743. The next prime is 1397761. The reversal of 1397754 is 4577931.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20829 + ... + 20895.

It is an arithmetic number, because the mean of its divisors is an integer number (68510).

2^1397754 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1397754, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1644240).

1397754 is an abundant number, since it is smaller than the sum of its proper divisors (1890726).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1397754 is a wasteful number, since it uses less digits than its factorization.

1397754 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155 (or 152 counting only the distinct ones).

The product of its digits is 26460, while the sum is 36.

The square root of 1397754 is about 1182.2664674260. The cubic root of 1397754 is about 111.8090389655.

The spelling of 1397754 in words is "one million, three hundred ninety-seven thousand, seven hundred fifty-four".