42877297 has 4 divisors (see below), whose sum is σ = 42917620. Its totient is φ = 42836976.

The previous prime is 42877291. The next prime is 42877333. The reversal of 42877297 is 79277824.

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 42562576 + 314721 = 6524^2 + 561^2 .

It is a cyclic number.

It is not a de Polignac number, because 42877297 - 2¹¹ = 42875249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42877291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18522 + ... + 20707.

It is an arithmetic number, because the mean of its divisors is an integer number (10729405).

Almost surely, 2^42877297 is an apocalyptic number.

It is an amenable number.

42877297 is a deficient number, since it is larger than the sum of its proper divisors (40323).

42877297 is a wasteful number, since it uses less digits than its factorization.

42877297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40322.

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

The square root of 42877297 is about 6548.0758242403. The cubic root of 42877297 is about 350.0062502285.

The spelling of 42877297 in words is "forty-two million, eight hundred seventy-seven thousand, two hundred ninety-seven".