13993451 has 8 divisors (see below), whose sum is σ = 14382144. Its totient is φ = 13608640.

The previous prime is 13993439. The next prime is 13993459. The reversal of 13993451 is 15439931.

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 13993451 - 2¹⁰ = 13992427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13993459) 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, 7271 + ... + 8991.

It is an arithmetic number, because the mean of its divisors is an integer number (1797768).

Almost surely, 2^13993451 is an apocalyptic number.

13993451 is a deficient number, since it is larger than the sum of its proper divisors (388693).

13993451 is a wasteful number, since it uses less digits than its factorization.

13993451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1941.

The product of its digits is 14580, while the sum is 35.

The square root of 13993451 is about 3740.7821374680. The cubic root of 13993451 is about 240.9766395520.

The spelling of 13993451 in words is "thirteen million, nine hundred ninety-three thousand, four hundred fifty-one".