13850397 has 24 divisors (see below), whose sum is σ = 22533888. Its totient is φ = 8121600.

The previous prime is 13850387. The next prime is 13850407. The reversal of 13850397 is 79305831.

It is an interprime number because it is at equal distance from previous prime (13850387) and next prime (13850407).

It is not a de Polignac number, because 13850397 - 2⁴ = 13850381 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13850327) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 813 + ... + 5325.

It is an arithmetic number, because the mean of its divisors is an integer number (938912).

Almost surely, 2^13850397 is an apocalyptic number.

It is an amenable number.

13850397 is a deficient number, since it is larger than the sum of its proper divisors (8683491).

13850397 is a wasteful number, since it uses less digits than its factorization.

13850397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4561 (or 4558 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 36.

The square root of 13850397 is about 3721.6121506680. The cubic root of 13850397 is about 240.1526632874.

The spelling of 13850397 in words is "thirteen million, eight hundred fifty thousand, three hundred ninety-seven".