42956707 has 4 divisors (see below), whose sum is σ = 42998256. Its totient is φ = 42915160.

The previous prime is 42956689. The next prime is 42956723. The reversal of 42956707 is 70765924.

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 42956707 - 2¹⁹ = 42432419 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42956707.

It is not an unprimeable number, because it can be changed into a prime (42956747) 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, 19183 + ... + 21304.

It is an arithmetic number, because the mean of its divisors is an integer number (10749564).

Almost surely, 2^42956707 is an apocalyptic number.

42956707 is a deficient number, since it is larger than the sum of its proper divisors (41549).

42956707 is a wasteful number, since it uses less digits than its factorization.

42956707 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41548.

The product of its (nonzero) digits is 105840, while the sum is 40.

The square root of 42956707 is about 6554.1366326924. The cubic root of 42956707 is about 350.2221908893. Note that the first 3 decimals are identical.

The spelling of 42956707 in words is "forty-two million, nine hundred fifty-six thousand, seven hundred seven".