42706923 has 16 divisors (see below), whose sum is σ = 66306816. Its totient is φ = 23942880.

The previous prime is 42706921. The next prime is 42706943. The reversal of 42706923 is 32960724.

It is not a de Polignac number, because 42706923 - 2¹ = 42706921 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42706921) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18073 + ... + 20298.

It is an arithmetic number, because the mean of its divisors is an integer number (4144176).

Almost surely, 2^42706923 is an apocalyptic number.

42706923 is a deficient number, since it is larger than the sum of its proper divisors (23599893).

42706923 is a wasteful number, since it uses less digits than its factorization.

42706923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38434.

The product of its (nonzero) digits is 18144, while the sum is 33.

The square root of 42706923 is about 6535.0534045255. The cubic root of 42706923 is about 349.5420486821.

The spelling of 42706923 in words is "forty-two million, seven hundred six thousand, nine hundred twenty-three".