13972946 has 32 divisors (see below), whose sum is σ = 24213168. Its totient is φ = 5990400.

The previous prime is 13972943. The next prime is 13972949. The reversal of 13972946 is 64927931.

It is an interprime number because it is at equal distance from previous prime (13972943) and next prime (13972949).

It can be written as a sum of positive squares in 8 ways, for example, as 5499025 + 8473921 = 2345^2 + 2911^2 .

It is not an unprimeable number, because it can be changed into a prime (13972943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44486 + ... + 44798.

Almost surely, 2^13972946 is an apocalyptic number.

13972946 is a deficient number, since it is larger than the sum of its proper divisors (10240222).

13972946 is a wasteful number, since it uses less digits than its factorization.

13972946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 446.

The product of its digits is 81648, while the sum is 41.

The square root of 13972946 is about 3738.0403957154. The cubic root of 13972946 is about 240.8588787160.

The spelling of 13972946 in words is "thirteen million, nine hundred seventy-two thousand, nine hundred forty-six".