40647067 has 4 divisors (see below), whose sum is σ = 42048720. Its totient is φ = 39245416.

The previous prime is 40647059. The next prime is 40647071. The reversal of 40647067 is 76074604.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 40647067 - 2³ = 40647059 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40647077) 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, 700783 + ... + 700840.

It is an arithmetic number, because the mean of its divisors is an integer number (10512180).

Almost surely, 2^40647067 is an apocalyptic number.

40647067 is a deficient number, since it is larger than the sum of its proper divisors (1401653).

40647067 is a wasteful number, since it uses less digits than its factorization.

40647067 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1401652.

The product of its (nonzero) digits is 28224, while the sum is 34.

The square root of 40647067 is about 6375.5052348814. The cubic root of 40647067 is about 343.8294488757.

The spelling of 40647067 in words is "forty million, six hundred forty-seven thousand, sixty-seven".