397479 has 8 divisors (see below), whose sum is σ = 541440. Its totient is φ = 259256.

The previous prime is 397469. The next prime is 397489. The reversal of 397479 is 974793.

It is an interprime number because it is at equal distance from previous prime (397469) and next prime (397489).

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 397479 - 2⁷ = 397351 is a prime.

397479 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (397429) 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, 1269 + ... + 1550.

It is an arithmetic number, because the mean of its divisors is an integer number (67680).

2³⁹⁷⁴⁷⁹ is an apocalyptic number.

397479 is a deficient number, since it is larger than the sum of its proper divisors (143961).

397479 is a wasteful number, since it uses less digits than its factorization.

397479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2869.

The product of its digits is 47628, while the sum is 39.

The square root of 397479 is about 630.4593563427. The cubic root of 397479 is about 73.5255129164.

The spelling of 397479 in words is "three hundred ninety-seven thousand, four hundred seventy-nine".