1397055 has 16 divisors (see below), whose sum is σ = 2438784. Its totient is φ = 677280.

The previous prime is 1397041. The next prime is 1397057. The reversal of 1397055 is 5507931.

It is a happy number.

It is not a de Polignac number, because 1397055 - 2⁵ = 1397023 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1397057) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4069 + ... + 4398.

It is an arithmetic number, because the mean of its divisors is an integer number (152424).

2^1397055 is an apocalyptic number.

1397055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1397055 is a deficient number, since it is larger than the sum of its proper divisors (1041729).

1397055 is a wasteful number, since it uses less digits than its factorization.

1397055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8486.

The product of its (nonzero) digits is 4725, while the sum is 30.

The square root of 1397055 is about 1181.9708118224. The cubic root of 1397055 is about 111.7903977382.

The spelling of 1397055 in words is "one million, three hundred ninety-seven thousand, fifty-five".