47671431 has 4 divisors (see below), whose sum is σ = 63561912. Its totient is φ = 31780952.

The previous prime is 47671427. The next prime is 47671453. The reversal of 47671431 is 13417674.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 47671431 - 2² = 47671427 is a prime.

It is a super-2 number, since 2×47671431² = 4545130667175522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 47671392 and 47671401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47671471) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7945236 + ... + 7945241.

It is an arithmetic number, because the mean of its divisors is an integer number (15890478).

Almost surely, 2^47671431 is an apocalyptic number.

47671431 is a deficient number, since it is larger than the sum of its proper divisors (15890481).

47671431 is a wasteful number, since it uses less digits than its factorization.

47671431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15890480.

The product of its digits is 14112, while the sum is 33.

The square root of 47671431 is about 6904.4500867194. The cubic root of 47671431 is about 362.5929838362.

The spelling of 47671431 in words is "forty-seven million, six hundred seventy-one thousand, four hundred thirty-one".