46923581 has 2 divisors, whose sum is σ = 46923582. Its totient is φ = 46923580.

The previous prime is 46923577. The next prime is 46923593. The reversal of 46923581 is 18532964.

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., 35295481 + 11628100 = 5941^2 + 3410^2 .

It is a cyclic number.

It is not a de Polignac number, because 46923581 - 2² = 46923577 is a prime.

It is a super-2 number, since 2×46923581² = 4403644907727122, 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 (46923781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23461790 + 23461791.

It is an arithmetic number, because the mean of its divisors is an integer number (23461791).

Almost surely, 2^46923581 is an apocalyptic number.

It is an amenable number.

46923581 is a deficient number, since it is larger than the sum of its proper divisors (1).

46923581 is an equidigital number, since it uses as much as digits as its factorization.

46923581 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 51840, while the sum is 38.

The square root of 46923581 is about 6850.0789046550. The cubic root of 46923581 is about 360.6869112168.

The spelling of 46923581 in words is "forty-six million, nine hundred twenty-three thousand, five hundred eighty-one".