42005697 has 8 divisors (see below), whose sum is σ = 56046144. Its totient is φ = 27984528.

The previous prime is 42005681. The next prime is 42005701. The reversal of 42005697 is 79650024.

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

It is not a de Polignac number, because 42005697 - 2⁴ = 42005681 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42005617) 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, 1423 + ... + 9275.

It is an arithmetic number, because the mean of its divisors is an integer number (7005768).

Almost surely, 2^42005697 is an apocalyptic number.

It is an amenable number.

42005697 is a deficient number, since it is larger than the sum of its proper divisors (14040447).

42005697 is a wasteful number, since it uses less digits than its factorization.

42005697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9639.

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 42005697 is about 6481.1802165964. The cubic root of 42005697 is about 347.6183803843.

The spelling of 42005697 in words is "forty-two million, five thousand, six hundred ninety-seven".