42167707 has 4 divisors (see below), whose sum is σ = 44387080. Its totient is φ = 39948336.

The previous prime is 42167693. The next prime is 42167729. The reversal of 42167707 is 70776124.

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

It is not a de Polignac number, because 42167707 - 2²³ = 33779099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42167767) 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, 1109658 + ... + 1109695.

It is an arithmetic number, because the mean of its divisors is an integer number (11096770).

Almost surely, 2^42167707 is an apocalyptic number.

42167707 is a deficient number, since it is larger than the sum of its proper divisors (2219373).

42167707 is a wasteful number, since it uses less digits than its factorization.

42167707 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2219372.

The product of its (nonzero) digits is 16464, while the sum is 34.

The square root of 42167707 is about 6493.6666837774. Note that the first 4 decimals coincide. The cubic root of 42167707 is about 348.0647119496.

The spelling of 42167707 in words is "forty-two million, one hundred sixty-seven thousand, seven hundred seven".