46947581 has 2 divisors, whose sum is σ = 46947582. Its totient is φ = 46947580.

The previous prime is 46947569. The next prime is 46947587. The reversal of 46947581 is 18574964.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30415225 + 16532356 = 5515^2 + 4066^2 .

It is a cyclic number.

It is not a de Polignac number, because 46947581 - 2⁶ = 46947517 is a prime.

It is a super-2 number, since 2×46947581² = 4408150723503122, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (46947587) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23473790 + 23473791.

It is an arithmetic number, because the mean of its divisors is an integer number (23473791).

Almost surely, 2^46947581 is an apocalyptic number.

It is an amenable number.

46947581 is a deficient number, since it is larger than the sum of its proper divisors (1).

46947581 is an equidigital number, since it uses as much as digits as its factorization.

46947581 is an evil number, because the sum of its binary digits is even.

The product of its digits is 241920, while the sum is 44.

The square root of 46947581 is about 6851.8304853521. The cubic root of 46947581 is about 360.7483942371.

The spelling of 46947581 in words is "forty-six million, nine hundred forty-seven thousand, five hundred eighty-one".