47446731 has 12 divisors (see below), whose sum is σ = 68757208. Its totient is φ = 31528224.

The previous prime is 47446727. The next prime is 47446741. The reversal of 47446731 is 13764474.

It is a happy number.

It is not a de Polignac number, because 47446731 - 2² = 47446727 is a prime.

It is a super-2 number, since 2×47446731² = 4502384565172722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47446741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5605 + ... + 11238.

Almost surely, 2^47446731 is an apocalyptic number.

47446731 is a deficient number, since it is larger than the sum of its proper divisors (21310477).

47446731 is a wasteful number, since it uses less digits than its factorization.

47446731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17162 (or 17159 counting only the distinct ones).

The product of its digits is 56448, while the sum is 36.

The square root of 47446731 is about 6888.1587525260. The cubic root of 47446731 is about 362.0223905852.

The spelling of 47446731 in words is "forty-seven million, four hundred forty-six thousand, seven hundred thirty-one".