1397469 has 8 divisors (see below), whose sum is σ = 1961440. Its totient is φ = 882576.

The previous prime is 1397447. The next prime is 1397477. The reversal of 1397469 is 9647931.

1397469 = T₃₇₄ + T₃₇₅ + ... + T₃₉₂.

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

It is not a de Polignac number, because 1397469 - 2⁵ = 1397437 is a prime.

It is a super-2 number, since 2×1397469² = 3905839211922, which contains 22 as substring.

It is a Duffinian number.

1397469 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1397069) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12202 + ... + 12315.

It is an arithmetic number, because the mean of its divisors is an integer number (245180).

2^1397469 is an apocalyptic number.

1397469 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

1397469 is a deficient number, since it is larger than the sum of its proper divisors (563971).

1397469 is a wasteful number, since it uses less digits than its factorization.

1397469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24539.

The product of its digits is 40824, while the sum is 39.

The square root of 1397469 is about 1182.1459300780. The cubic root of 1397469 is about 111.8014392156.

The spelling of 1397469 in words is "one million, three hundred ninety-seven thousand, four hundred sixty-nine".