47939998 has 4 divisors (see below), whose sum is σ = 71910000. Its totient is φ = 23969998.

The previous prime is 47939993. The next prime is 47940007. The reversal of 47939998 is 89993974.

It is a semiprime because it is the product of two primes.

It is a super-3 number, since 3×47939998³ (a number of 24 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47939993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11984998 + ... + 11985001.

It is an arithmetic number, because the mean of its divisors is an integer number (17977500).

Almost surely, 2^47939998 is an apocalyptic number.

47939998 is a deficient number, since it is larger than the sum of its proper divisors (23970002).

47939998 is a wasteful number, since it uses less digits than its factorization.

47939998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23970001.

The product of its digits is 4408992, while the sum is 58.

The square root of 47939998 is about 6923.8716048176. The cubic root of 47939998 is about 363.2726236603.

The spelling of 47939998 in words is "forty-seven million, nine hundred thirty-nine thousand, nine hundred ninety-eight".