1397471 has 8 divisors (see below), whose sum is σ = 1436400. Its totient is φ = 1359232.

The previous prime is 1397447. The next prime is 1397477. The reversal of 1397471 is 1747931.

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

It is a cyclic number.

It is not a de Polignac number, because 1397471 - 2¹⁸ = 1135327 is a prime.

It is a super-3 number, since 3×1397471³ = 8187468979071354333, which contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1397477) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 9305 + ... + 9453.

It is an arithmetic number, because the mean of its divisors is an integer number (179550).

2^1397471 is an apocalyptic number.

1397471 is a deficient number, since it is larger than the sum of its proper divisors (38929).

1397471 is a wasteful number, since it uses less digits than its factorization.

1397471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345.

The product of its digits is 5292, while the sum is 32.

The square root of 1397471 is about 1182.1467759970. The cubic root of 1397471 is about 111.8014925508.

The spelling of 1397471 in words is "one million, three hundred ninety-seven thousand, four hundred seventy-one".