14706991 has 4 divisors (see below), whose sum is σ = 15838312. Its totient is φ = 13575672.

The previous prime is 14706971. The next prime is 14706997. The reversal of 14706991 is 19960741.

14706991 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 an emirpimes, since its reverse is a distinct semiprime: 19960741 = 419 ⋅47639.

It is a cyclic number.

It is not a de Polignac number, because 14706991 - 2⁷ = 14706863 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 14706991.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14706997) 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, 565641 + ... + 565666.

It is an arithmetic number, because the mean of its divisors is an integer number (3959578).

Almost surely, 2^14706991 is an apocalyptic number.

14706991 is a deficient number, since it is larger than the sum of its proper divisors (1131321).

14706991 is a wasteful number, since it uses less digits than its factorization.

14706991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1131320.

The product of its (nonzero) digits is 13608, while the sum is 37.

The square root of 14706991 is about 3834.9694914041. The cubic root of 14706991 is about 245.0048090129.

The spelling of 14706991 in words is "fourteen million, seven hundred six thousand, nine hundred ninety-one".