15968401 has 4 divisors (see below), whose sum is σ = 16074304. Its totient is φ = 15862500.

The previous prime is 15968383. The next prime is 15968413. The reversal of 15968401 is 10486951.

15968401 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 15968401 - 2⁷ = 15968273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15968461) 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, 52725 + ... + 53026.

It is an arithmetic number, because the mean of its divisors is an integer number (4018576).

Almost surely, 2^15968401 is an apocalyptic number.

It is an amenable number.

15968401 is a deficient number, since it is larger than the sum of its proper divisors (105903).

15968401 is a wasteful number, since it uses less digits than its factorization.

15968401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105902.

The product of its (nonzero) digits is 8640, while the sum is 34.

The square root of 15968401 is about 3996.0481728828. The cubic root of 15968401 is about 251.8182163000.

The spelling of 15968401 in words is "fifteen million, nine hundred sixty-eight thousand, four hundred one".