13690623 has 8 divisors (see below), whose sum is σ = 18843136. Its totient is φ = 8832600.

The previous prime is 13690619. The next prime is 13690631. The reversal of 13690623 is 32609631.

It is a happy number.

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

It is not a de Polignac number, because 13690623 - 2² = 13690619 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 (13690693) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73513 + ... + 73698.

It is an arithmetic number, because the mean of its divisors is an integer number (2355392).

Almost surely, 2^13690623 is an apocalyptic number.

13690623 is a deficient number, since it is larger than the sum of its proper divisors (5152513).

13690623 is a wasteful number, since it uses less digits than its factorization.

13690623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147245.

The product of its (nonzero) digits is 5832, while the sum is 30.

The square root of 13690623 is about 3700.0841882314. The cubic root of 13690623 is about 239.2256466183.

The spelling of 13690623 in words is "thirteen million, six hundred ninety thousand, six hundred twenty-three".