13907690 has 16 divisors (see below), whose sum is σ = 25076520. Its totient is φ = 5553600.

The previous prime is 13907689. The next prime is 13907737. The reversal of 13907690 is 9670931.

It can be written as a sum of positive squares in 4 ways, for example, as 6017209 + 7890481 = 2453^2 + 2809^2 .

It is a super-2 number, since 2×13907690² = 386847682272200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13907690.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10040 + ... + 11340.

Almost surely, 2^13907690 is an apocalyptic number.

13907690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13907690 is a deficient number, since it is larger than the sum of its proper divisors (11168830).

13907690 is a wasteful number, since it uses less digits than its factorization.

13907690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2377.

The product of its (nonzero) digits is 10206, while the sum is 35.

The square root of 13907690 is about 3729.3015431847. The cubic root of 13907690 is about 240.4833430574.

The spelling of 13907690 in words is "thirteen million, nine hundred seven thousand, six hundred ninety".