47422261 has 2 divisors, whose sum is σ = 47422262. Its totient is φ = 47422260.

The previous prime is 47422237. The next prime is 47422267. The reversal of 47422261 is 16222474.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 43639236 + 3783025 = 6606^2 + 1945^2 .

It is a cyclic number.

It is not a de Polignac number, because 47422261 - 2⁵ = 47422229 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47422267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23711130 + 23711131.

It is an arithmetic number, because the mean of its divisors is an integer number (23711131).

Almost surely, 2^47422261 is an apocalyptic number.

It is an amenable number.

47422261 is a deficient number, since it is larger than the sum of its proper divisors (1).

47422261 is an equidigital number, since it uses as much as digits as its factorization.

47422261 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5376, while the sum is 28.

The square root of 47422261 is about 6886.3822868034. The cubic root of 47422261 is about 361.9601438574.

The spelling of 47422261 in words is "forty-seven million, four hundred twenty-two thousand, two hundred sixty-one".