47481399 has 24 divisors (see below), whose sum is σ = 82509440. Its totient is φ = 25703568.

The previous prime is 47481377. The next prime is 47481409. The reversal of 47481399 is 99318474.

It is not a de Polignac number, because 47481399 - 2⁷ = 47481271 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47481349) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18637 + ... + 21030.

Almost surely, 2^47481399 is an apocalyptic number.

47481399 is a deficient number, since it is larger than the sum of its proper divisors (35028041).

47481399 is a wasteful number, since it uses less digits than its factorization.

47481399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39699 (or 39696 counting only the distinct ones).

The product of its digits is 217728, while the sum is 45.

The square root of 47481399 is about 6890.6747855344. The cubic root of 47481399 is about 362.1105423322.

The spelling of 47481399 in words is "forty-seven million, four hundred eighty-one thousand, three hundred ninety-nine".