13939700 has 18 divisors (see below), whose sum is σ = 30249366. Its totient is φ = 5575840.

The previous prime is 13939699. The next prime is 13939703. The reversal of 13939700 is 793931.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 131044 + 13808656 = 362^2 + 3716^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13939703) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 69599 + ... + 69798.

Almost surely, 2^13939700 is an apocalyptic number.

13939700 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13939700 is an abundant number, since it is smaller than the sum of its proper divisors (16309666).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13939700 is a wasteful number, since it uses less digits than its factorization.

13939700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139411 (or 139404 counting only the distinct ones).

The product of its (nonzero) digits is 5103, while the sum is 32.

The square root of 13939700 is about 3733.5907649339. The cubic root of 13939700 is about 240.6677008607.

The spelling of 13939700 in words is "thirteen million, nine hundred thirty-nine thousand, seven hundred".