47490471 has 24 divisors (see below), whose sum is σ = 79574144. Its totient is φ = 26730000.

The previous prime is 47490467. The next prime is 47490473. The reversal of 47490471 is 17409474.

It is not a de Polignac number, because 47490471 - 2² = 47490467 is a prime.

It is a super-3 number, since 3×47490471³ (a number of 24 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47490473) 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, 1405 + ... + 9846.

Almost surely, 2^47490471 is an apocalyptic number.

47490471 is a deficient number, since it is larger than the sum of its proper divisors (32083673).

47490471 is a wasteful number, since it uses less digits than its factorization.

47490471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11331 (or 11328 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 36.

The square root of 47490471 is about 6891.3330350521. Note that the first 3 decimals coincide. The cubic root of 47490471 is about 362.1336029954.

It can be divided in two parts, 47490 and 471, that added together give a square (47961 = 219²).

The spelling of 47490471 in words is "forty-seven million, four hundred ninety thousand, four hundred seventy-one".