47931424 has 12 divisors (see below), whose sum is σ = 94365054. Its totient is φ = 23965696.

The previous prime is 47931409. The next prime is 47931437. The reversal of 47931424 is 42413974.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 39287824 + 8643600 = 6268^2 + 2940^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 47931424.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 748897 + ... + 748960.

Almost surely, 2^47931424 is an apocalyptic number.

It is an amenable number.

47931424 is a deficient number, since it is larger than the sum of its proper divisors (46433630).

47931424 is a wasteful number, since it uses less digits than its factorization.

47931424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1497867 (or 1497859 counting only the distinct ones).

The product of its digits is 24192, while the sum is 34.

The square root of 47931424 is about 6923.2524148698. The cubic root of 47931424 is about 363.2509654395.

The spelling of 47931424 in words is "forty-seven million, nine hundred thirty-one thousand, four hundred twenty-four".