47917144 has 16 divisors (see below), whose sum is σ = 98012520. Its totient is φ = 21780480.

The previous prime is 47917123. The next prime is 47917153. The reversal of 47917144 is 44171974.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 272169 + ... + 272344.

Almost surely, 2^47917144 is an apocalyptic number.

47917144 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

47917144 is an abundant number, since it is smaller than the sum of its proper divisors (50095376).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

47917144 is a wasteful number, since it uses less digits than its factorization.

47917144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 544530 (or 544526 counting only the distinct ones).

The product of its digits is 28224, while the sum is 37.

The square root of 47917144 is about 6922.2210308542. The cubic root of 47917144 is about 363.2148879314.

It can be divided in two parts, 4791 and 7144, that added together give a triangular number (11935 = T₁₅₄).

The spelling of 47917144 in words is "forty-seven million, nine hundred seventeen thousand, one hundred forty-four".