42955617 has 8 divisors (see below), whose sum is σ = 60643296. Its totient is φ = 26952512.

The previous prime is 42955607. The next prime is 42955669. The reversal of 42955617 is 71655924.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42955617 - 2⁷ = 42955489 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42955607) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 421083 + ... + 421184.

It is an arithmetic number, because the mean of its divisors is an integer number (7580412).

Almost surely, 2^42955617 is an apocalyptic number.

It is an amenable number.

42955617 is a deficient number, since it is larger than the sum of its proper divisors (17687679).

42955617 is a wasteful number, since it uses less digits than its factorization.

42955617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 842287.

The product of its digits is 75600, while the sum is 39.

The square root of 42955617 is about 6554.0534785734. The cubic root of 42955617 is about 350.2192286400.

The spelling of 42955617 in words is "forty-two million, nine hundred fifty-five thousand, six hundred seventeen".