47044431 has 12 divisors (see below), whose sum is σ = 77660752. Its totient is φ = 26882496.

The previous prime is 47044429. The next prime is 47044447. The reversal of 47044431 is 13444074.

It is not a de Polignac number, because 47044431 - 2¹ = 47044429 is a prime.

It is a super-2 number, since 2×47044431² = 4426356976227522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 47044395 and 47044404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47045431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 373306 + ... + 373431.

Almost surely, 2^47044431 is an apocalyptic number.

47044431 is a deficient number, since it is larger than the sum of its proper divisors (30616321).

47044431 is a wasteful number, since it uses less digits than its factorization.

47044431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 746750 (or 746747 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 27.

The square root of 47044431 is about 6858.8942986461. The cubic root of 47044431 is about 360.9962911710.

The spelling of 47044431 in words is "forty-seven million, forty-four thousand, four hundred thirty-one".