47047922 has 4 divisors (see below), whose sum is σ = 70571886. Its totient is φ = 23523960.

The previous prime is 47047909. The next prime is 47047927. The reversal of 47047922 is 22974074.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22974074 = 2 ⋅11487037.

It can be written as a sum of positive squares in only one way, i.e., 32615521 + 14432401 = 5711^2 + 3799^2 .

It is not an unprimeable number, because it can be changed into a prime (47047927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11761979 + ... + 11761982.

Almost surely, 2^47047922 is an apocalyptic number.

47047922 is a deficient number, since it is larger than the sum of its proper divisors (23523964).

47047922 is a wasteful number, since it uses less digits than its factorization.

47047922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23523963.

The product of its (nonzero) digits is 28224, while the sum is 35.

The square root of 47047922 is about 6859.1487810077. The cubic root of 47047922 is about 361.0052203674.

It can be divided in two parts, 47047 and 922, that multiplied together give a palindrome (43377334).

The spelling of 47047922 in words is "forty-seven million, forty-seven thousand, nine hundred twenty-two".