42997227 has 32 divisors (see below), whose sum is σ = 73006080. Its totient is φ = 21893760.

The previous prime is 42997223. The next prime is 42997243. The reversal of 42997227 is 72279924.

It is not a de Polignac number, because 42997227 - 2² = 42997223 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42997223) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5202 + ... + 10632.

It is an arithmetic number, because the mean of its divisors is an integer number (2281440).

Almost surely, 2^42997227 is an apocalyptic number.

42997227 is a deficient number, since it is larger than the sum of its proper divisors (30008853).

42997227 is a wasteful number, since it uses less digits than its factorization.

42997227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5483.

The product of its digits is 127008, while the sum is 42.

The square root of 42997227 is about 6557.2270816253. The cubic root of 42997227 is about 350.3322749289.

The spelling of 42997227 in words is "forty-two million, nine hundred ninety-seven thousand, two hundred twenty-seven".