47950021 has 8 divisors (see below), whose sum is σ = 56689920. Its totient is φ = 39682608.

The previous prime is 47949991. The next prime is 47950027. The reversal of 47950021 is 12005974.

It is a happy number.

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

It is not a de Polignac number, because 47950021 - 2⁵ = 47949989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47950027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 117901 + ... + 118306.

It is an arithmetic number, because the mean of its divisors is an integer number (7086240).

Almost surely, 2^47950021 is an apocalyptic number.

It is an amenable number.

47950021 is a deficient number, since it is larger than the sum of its proper divisors (8739899).

47950021 is a wasteful number, since it uses less digits than its factorization.

47950021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236243.

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 47950021 is about 6924.5953672399. The cubic root of 47950021 is about 363.2979388316.

Adding to 47950021 its reverse (12005974), we get a palindrome (59955995).

The spelling of 47950021 in words is "forty-seven million, nine hundred fifty thousand, twenty-one".