13970072 has 8 divisors (see below), whose sum is σ = 26193900. Its totient is φ = 6985032.

The previous prime is 13970071. The next prime is 13970093. The reversal of 13970072 is 27007931.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13970071) 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 as a sum of consecutive naturals, namely, 873122 + ... + 873137.

Almost surely, 2^13970072 is an apocalyptic number.

It is an amenable number.

13970072 is a deficient number, since it is larger than the sum of its proper divisors (12223828).

13970072 is a wasteful number, since it uses less digits than its factorization.

13970072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1746265 (or 1746261 counting only the distinct ones).

The product of its (nonzero) digits is 2646, while the sum is 29.

The square root of 13970072 is about 3737.6559499237. The cubic root of 13970072 is about 240.8423640434.

The spelling of 13970072 in words is "thirteen million, nine hundred seventy thousand, seventy-two".