13964457 has 16 divisors (see below), whose sum is σ = 20744640. Its totient is φ = 8296512.

The previous prime is 13964453. The next prime is 13964491. The reversal of 13964457 is 75446931.

It is not a de Polignac number, because 13964457 - 2² = 13964453 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (13964453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5043 + ... + 7304.

It is an arithmetic number, because the mean of its divisors is an integer number (1296540).

Almost surely, 2^13964457 is an apocalyptic number.

It is an amenable number.

13964457 is a deficient number, since it is larger than the sum of its proper divisors (6780183).

13964457 is a wasteful number, since it uses less digits than its factorization.

13964457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12392.

The product of its digits is 90720, while the sum is 39.

The square root of 13964457 is about 3736.9047352053. The cubic root of 13964457 is about 240.8100924108.

The spelling of 13964457 in words is "thirteen million, nine hundred sixty-four thousand, four hundred fifty-seven".