40947017 has 4 divisors (see below), whose sum is σ = 41071056. Its totient is φ = 40822980.

The previous prime is 40947007. The next prime is 40947029. The reversal of 40947017 is 71074904.

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 a cyclic number.

It is not a de Polignac number, because 40947017 - 2¹⁸ = 40684873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40947007) 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, 61523 + ... + 62184.

It is an arithmetic number, because the mean of its divisors is an integer number (10267764).

Almost surely, 2^40947017 is an apocalyptic number.

It is an amenable number.

40947017 is a deficient number, since it is larger than the sum of its proper divisors (124039).

40947017 is a wasteful number, since it uses less digits than its factorization.

40947017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124038.

The product of its (nonzero) digits is 7056, while the sum is 32.

The square root of 40947017 is about 6398.9856227374. The cubic root of 40947017 is about 344.6731259501.

It can be divided in two parts, 4094 and 7017, that added together give a palindrome (11111).

The spelling of 40947017 in words is "forty million, nine hundred forty-seven thousand, seventeen".