47722841 has 2 divisors, whose sum is σ = 47722842. Its totient is φ = 47722840.

The previous prime is 47722837. The next prime is 47722847. The reversal of 47722841 is 14822774.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24403600 + 23319241 = 4940^2 + 4829^2 .

It is a cyclic number.

It is not a de Polignac number, because 47722841 - 2² = 47722837 is a prime.

It is a super-2 number, since 2×47722841² = 4554939106222562, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (47722847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23861420 + 23861421.

It is an arithmetic number, because the mean of its divisors is an integer number (23861421).

Almost surely, 2^47722841 is an apocalyptic number.

It is an amenable number.

47722841 is a deficient number, since it is larger than the sum of its proper divisors (1).

47722841 is an equidigital number, since it uses as much as digits as its factorization.

47722841 is an evil number, because the sum of its binary digits is even.

The product of its digits is 25088, while the sum is 35.

The square root of 47722841 is about 6908.1720447597. The cubic root of 47722841 is about 362.7232799625.

It can be divided in two parts, 4 and 7722841, that multiplied together give a square (30891364 = 5558²).

The spelling of 47722841 in words is "forty-seven million, seven hundred twenty-two thousand, eight hundred forty-one".