1397590 has 8 divisors (see below), whose sum is σ = 2515680. Its totient is φ = 559032.

The previous prime is 1397581. The next prime is 1397603. The reversal of 1397590 is 957931.

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 pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69870 + ... + 69889.

It is an arithmetic number, because the mean of its divisors is an integer number (314460).

2^1397590 is an apocalyptic number.

1397590 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1397590 is a deficient number, since it is larger than the sum of its proper divisors (1118090).

1397590 is a wasteful number, since it uses less digits than its factorization.

1397590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139766.

The product of its (nonzero) digits is 8505, while the sum is 34.

The square root of 1397590 is about 1182.1971070849. The cubic root of 1397590 is about 111.8046659023.

The spelling of 1397590 in words is "one million, three hundred ninety-seven thousand, five hundred ninety".