13993001 has 4 divisors (see below), whose sum is σ = 15265104. Its totient is φ = 12720900.

The previous prime is 13992983. The next prime is 13993003. The reversal of 13993001 is 10039931.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 13993001 - 2¹⁰ = 13991977 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13993003) 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, 636035 + ... + 636056.

It is an arithmetic number, because the mean of its divisors is an integer number (3816276).

Almost surely, 2^13993001 is an apocalyptic number.

13993001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

13993001 is the 2000-th centered heptagonal number.

It is an amenable number.

13993001 is a deficient number, since it is larger than the sum of its proper divisors (1272103).

13993001 is a wasteful number, since it uses less digits than its factorization.

13993001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1272102.

The product of its (nonzero) digits is 729, while the sum is 26.

The square root of 13993001 is about 3740.7219891353. The cubic root of 13993001 is about 240.9740564234.

The spelling of 13993001 in words is "thirteen million, nine hundred ninety-three thousand, one".