13690001 has 8 divisors (see below), whose sum is σ = 15251880. Its totient is φ = 12200832.

The previous prime is 13689997. The next prime is 13690031. The reversal of 13690001 is 10009631.

It is a Cunningham number, because it is equal to 3700²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 1 + 13690000 = 1^2 + 3700^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 13690001 - 2² = 13689997 is a prime.

It is a super-2 number, since 2×13690001² = 374832254760002, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13690031) 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, 17780 + ... + 18533.

It is an arithmetic number, because the mean of its divisors is an integer number (1906485).

Almost surely, 2^13690001 is an apocalyptic number.

It is an amenable number.

13690001 is a deficient number, since it is larger than the sum of its proper divisors (1561879).

13690001 is a wasteful number, since it uses less digits than its factorization.

13690001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36355.

The product of its (nonzero) digits is 162, while the sum is 20.

The square root of 13690001 is about 3700.0001351351. Note that the first 3 decimals coincide. The cubic root of 13690001 is about 239.2220236859. Note that the first 3 decimals are identical.

Adding to 13690001 its reverse (10009631), we get a palindrome (23699632).

The spelling of 13690001 in words is "thirteen million, six hundred ninety thousand, one".