13934591 has 4 divisors (see below), whose sum is σ = 15201384. Its totient is φ = 12667800.

The previous prime is 13934579. The next prime is 13934603. The reversal of 13934591 is 19543931.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (13934579) and next prime (13934603).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13934591 is a prime.

It is a plaindrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13934551) 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, 633380 + ... + 633401.

It is an arithmetic number, because the mean of its divisors is an integer number (3800346).

Almost surely, 2^13934591 is an apocalyptic number.

13934591 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

13934591 is a deficient number, since it is larger than the sum of its proper divisors (1266793).

13934591 is a wasteful number, since it uses less digits than its factorization.

13934591 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1266792.

The product of its digits is 14580, while the sum is 35.

The square root of 13934591 is about 3732.9065083390. The cubic root of 13934591 is about 240.6382951219.

The spelling of 13934591 in words is "thirteen million, nine hundred thirty-four thousand, five hundred ninety-one".