42267977 has 4 divisors (see below), whose sum is σ = 43065540. Its totient is φ = 41470416.

The previous prime is 42267961. The next prime is 42267983. The reversal of 42267977 is 77976224.

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

It can be written as a sum of positive squares in 2 ways, for example, as 31483321 + 10784656 = 5611^2 + 3284^2 .

It is a cyclic number.

It is not a de Polignac number, because 42267977 - 2⁴ = 42267961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42237977) 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, 398702 + ... + 398807.

It is an arithmetic number, because the mean of its divisors is an integer number (10766385).

Almost surely, 2^42267977 is an apocalyptic number.

It is an amenable number.

42267977 is a deficient number, since it is larger than the sum of its proper divisors (797563).

42267977 is an equidigital number, since it uses as much as digits as its factorization.

42267977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 797562.

The product of its digits is 296352, while the sum is 44.

The square root of 42267977 is about 6501.3826990879. The cubic root of 42267977 is about 348.3403796310.

The spelling of 42267977 in words is "forty-two million, two hundred sixty-seven thousand, nine hundred seventy-seven".