42277879 has 4 divisors (see below), whose sum is σ = 48317584. Its totient is φ = 36238176.

The previous prime is 42277867. The next prime is 42277883. The reversal of 42277879 is 97877224.

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 42277879 - 2¹⁵ = 42245111 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42277889) 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, 3019842 + ... + 3019855.

It is an arithmetic number, because the mean of its divisors is an integer number (12079396).

Almost surely, 2^42277879 is an apocalyptic number.

42277879 is a deficient number, since it is larger than the sum of its proper divisors (6039705).

42277879 is an equidigital number, since it uses as much as digits as its factorization.

42277879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6039704.

The product of its digits is 395136, while the sum is 46.

The square root of 42277879 is about 6502.1441848055. The cubic root of 42277879 is about 348.3675790806.

The spelling of 42277879 in words is "forty-two million, two hundred seventy-seven thousand, eight hundred seventy-nine".