13343957 has 4 divisors (see below), whose sum is σ = 14557056. Its totient is φ = 12130860.

The previous prime is 13343951. The next prime is 13343977. The reversal of 13343957 is 75934331.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 75934331 = 11 ⋅6903121.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13343957 is a prime.

It is a super-2 number, since 2×13343957² = 356122376835698, which contains 22 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 (13343951) 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, 606533 + ... + 606554.

It is an arithmetic number, because the mean of its divisors is an integer number (3639264).

Almost surely, 2^13343957 is an apocalyptic number.

It is an amenable number.

13343957 is a deficient number, since it is larger than the sum of its proper divisors (1213099).

13343957 is a wasteful number, since it uses less digits than its factorization.

13343957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1213098.

The product of its digits is 34020, while the sum is 35.

The square root of 13343957 is about 3652.9381325174. The cubic root of 13343957 is about 237.1891823282.

The spelling of 13343957 in words is "thirteen million, three hundred forty-three thousand, nine hundred fifty-seven".