47899942 has 8 divisors (see below), whose sum is σ = 72280656. Its totient is φ = 23806392.

The previous prime is 47899939. The next prime is 47899949. The reversal of 47899942 is 24999874.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 47899942.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47899949) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71373 + ... + 72040.

It is an arithmetic number, because the mean of its divisors is an integer number (9035082).

Almost surely, 2^47899942 is an apocalyptic number.

47899942 is a deficient number, since it is larger than the sum of its proper divisors (24380714).

47899942 is a wasteful number, since it uses less digits than its factorization.

47899942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143582.

The product of its digits is 1306368, while the sum is 52.

The square root of 47899942 is about 6920.9783990416. The cubic root of 47899942 is about 363.1714186579.

It can be divided in two parts, 47899 and 942, that added together give a square (48841 = 221²).

The spelling of 47899942 in words is "forty-seven million, eight hundred ninety-nine thousand, nine hundred forty-two".