47438307 has 24 divisors (see below), whose sum is σ = 82434560. Its totient is φ = 25680240.

The previous prime is 47438273. The next prime is 47438309. The reversal of 47438307 is 70383474.

It is not a de Polignac number, because 47438307 - 2¹⁵ = 47405539 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47438309) 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, 18619 + ... + 21012.

Almost surely, 2^47438307 is an apocalyptic number.

47438307 is a deficient number, since it is larger than the sum of its proper divisors (34996253).

47438307 is a wasteful number, since it uses less digits than its factorization.

47438307 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39663 (or 39660 counting only the distinct ones).

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

The square root of 47438307 is about 6887.5472412173. The cubic root of 47438307 is about 362.0009640502. Note that the first 3 decimals are identical.

It can be divided in two parts, 474 and 38307, that added together give a triangular number (38781 = T₂₇₈).

The spelling of 47438307 in words is "forty-seven million, four hundred thirty-eight thousand, three hundred seven".