40947573 has 4 divisors (see below), whose sum is σ = 54596768. Its totient is φ = 27298380.

The previous prime is 40947563. The next prime is 40947581. The reversal of 40947573 is 37574904.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 40947573 - 2⁵ = 40947541 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40947563) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6824593 + ... + 6824598.

It is an arithmetic number, because the mean of its divisors is an integer number (13649192).

Almost surely, 2^40947573 is an apocalyptic number.

It is an amenable number.

40947573 is a deficient number, since it is larger than the sum of its proper divisors (13649195).

40947573 is a wasteful number, since it uses less digits than its factorization.

40947573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13649194.

The product of its (nonzero) digits is 105840, while the sum is 39.

The square root of 40947573 is about 6399.0290669757. The cubic root of 40947573 is about 344.6746859937.

The spelling of 40947573 in words is "forty million, nine hundred forty-seven thousand, five hundred seventy-three".