397501 has 4 divisors (see below), whose sum is σ = 428092. Its totient is φ = 366912.

The previous prime is 397493. The next prime is 397517. The reversal of 397501 is 105793.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 105793 = 67 ⋅1579.

It can be written as a sum of positive squares in 2 ways, for example, as 96100 + 301401 = 310^2 + 549^2 .

It is not a de Polignac number, because 397501 - 2³ = 397493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (397541) 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, 15276 + ... + 15301.

It is an arithmetic number, because the mean of its divisors is an integer number (107023).

2³⁹⁷⁵⁰¹ is an apocalyptic number.

It is an amenable number.

397501 is a deficient number, since it is larger than the sum of its proper divisors (30591).

397501 is a wasteful number, since it uses less digits than its factorization.

397501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30590.

The product of its (nonzero) digits is 945, while the sum is 25.

The square root of 397501 is about 630.4768036970. The cubic root of 397501 is about 73.5268694086.

It can be divided in two parts, 397 and 501, that added together give a palindrome (898).

The spelling of 397501 in words is "three hundred ninety-seven thousand, five hundred one".