13907493 has 6 divisors (see below), whose sum is σ = 20088614. Its totient is φ = 9271656.

The previous prime is 13907489. The next prime is 13907503. The reversal of 13907493 is 39470931.

It can be written as a sum of positive squares in only one way, i.e., 12510369 + 1397124 = 3537^2 + 1182^2 .

It is not a de Polignac number, because 13907493 - 2² = 13907489 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 (13907423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 772630 + ... + 772647.

Almost surely, 2^13907493 is an apocalyptic number.

It is an amenable number.

13907493 is a deficient number, since it is larger than the sum of its proper divisors (6181121).

13907493 is a wasteful number, since it uses less digits than its factorization.

13907493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1545283 (or 1545280 counting only the distinct ones).

The product of its (nonzero) digits is 20412, while the sum is 36.

The square root of 13907493 is about 3729.2751306387. The cubic root of 13907493 is about 240.4822075838.

It can be divided in two parts, 13907 and 493, that added together give a square (14400 = 120²).

The spelling of 13907493 in words is "thirteen million, nine hundred seven thousand, four hundred ninety-three".