47869431 has 8 divisors (see below), whose sum is σ = 64032384. Its totient is φ = 31809720.

The previous prime is 47869429. The next prime is 47869447. The reversal of 47869431 is 13496874.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 47869431 - 2¹ = 47869429 is a prime.

It is a super-2 number, since 2×47869431² = 4582964848527522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47869411) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24721 + ... + 26586.

It is an arithmetic number, because the mean of its divisors is an integer number (8004048).

Almost surely, 2^47869431 is an apocalyptic number.

47869431 is a deficient number, since it is larger than the sum of its proper divisors (16162953).

47869431 is a wasteful number, since it uses less digits than its factorization.

47869431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51621.

The product of its digits is 145152, while the sum is 42.

The square root of 47869431 is about 6918.7738075471. The cubic root of 47869431 is about 363.0942920739.

The spelling of 47869431 in words is "forty-seven million, eight hundred sixty-nine thousand, four hundred thirty-one".