13930690 has 8 divisors (see below), whose sum is σ = 25075260. Its totient is φ = 5572272.

The previous prime is 13930681. The next prime is 13930699. The reversal of 13930690 is 9603931.

It is an interprime number because it is at equal distance from previous prime (13930681) and next prime (13930699).

It can be written as a sum of positive squares in 2 ways, for example, as 13697401 + 233289 = 3701^2 + 483^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×13930690² = 388128247752200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13930699) 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, 696525 + ... + 696544.

Almost surely, 2^13930690 is an apocalyptic number.

13930690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13930690 is a deficient number, since it is larger than the sum of its proper divisors (11144570).

13930690 is a wasteful number, since it uses less digits than its factorization.

13930690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1393076.

The product of its (nonzero) digits is 4374, while the sum is 31.

The square root of 13930690 is about 3732.3839566690. The cubic root of 13930690 is about 240.6158373978.

The spelling of 13930690 in words is "thirteen million, nine hundred thirty thousand, six hundred ninety".