47144769 has 32 divisors (see below), whose sum is σ = 74833920. Its totient is φ = 25833600.

The previous prime is 47144761. The next prime is 47144803. The reversal of 47144769 is 96744174.

It is not a de Polignac number, because 47144769 - 2³ = 47144761 is a prime.

It is a super-2 number, since 2×47144769² = 4445258488126722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 47144769.

It is not an unprimeable number, because it can be changed into a prime (47144761) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 90229 + ... + 90749.

It is an arithmetic number, because the mean of its divisors is an integer number (2338560).

Almost surely, 2^47144769 is an apocalyptic number.

It is an amenable number.

47144769 is a deficient number, since it is larger than the sum of its proper divisors (27689151).

47144769 is a wasteful number, since it uses less digits than its factorization.

47144769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 701.

The product of its digits is 169344, while the sum is 42.

The square root of 47144769 is about 6866.2048469296. The cubic root of 47144769 is about 361.2527574092.

The spelling of 47144769 in words is "forty-seven million, one hundred forty-four thousand, seven hundred sixty-nine".