1357697 has 4 divisors (see below), whose sum is σ = 1481136. Its totient is φ = 1234260.

The previous prime is 1357679. The next prime is 1357703. The reversal of 1357697 is 7967531.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1357697 - 2¹⁴ = 1341313 is a prime.

It is a super-2 number, since 2×1357697² = 3686682287618, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1357697.

It is not an unprimeable number, because it can be changed into a prime (1350697) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61703 + ... + 61724.

It is an arithmetic number, because the mean of its divisors is an integer number (370284).

2^1357697 is an apocalyptic number.

It is an amenable number.

1357697 is a deficient number, since it is larger than the sum of its proper divisors (123439).

1357697 is a wasteful number, since it uses less digits than its factorization.

1357697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123438.

The product of its digits is 39690, while the sum is 38.

The square root of 1357697 is about 1165.2025574981. The cubic root of 1357697 is about 110.7305914045.

The spelling of 1357697 in words is "one million, three hundred fifty-seven thousand, six hundred ninety-seven".