47912544 has 36 divisors (see below), whose sum is σ = 136252116. Its totient is φ = 15970752.

The previous prime is 47912539. The next prime is 47912549. The reversal of 47912544 is 44521974.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (47912539) and next prime (47912549).

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×47912544² = 4591223745103872, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 47912499 and 47912508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47912549) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 82894 + ... + 83469.

It is an arithmetic number, because the mean of its divisors is an integer number (3784781).

Almost surely, 2^47912544 is an apocalyptic number.

It is an amenable number.

47912544 is an abundant number, since it is smaller than the sum of its proper divisors (88339572).

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

47912544 is a wasteful number, since it uses less digits than its factorization.

47912544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166379 (or 166368 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The square root of 47912544 is about 6921.8887595800. Note that the first 3 decimals coincide. The cubic root of 47912544 is about 363.2032647989.

The spelling of 47912544 in words is "forty-seven million, nine hundred twelve thousand, five hundred forty-four".