42771347 has 4 divisors (see below), whose sum is σ = 42861120. Its totient is φ = 42681576.

The previous prime is 42771343. The next prime is 42771349. The reversal of 42771347 is 74317724.

It is a happy number.

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 42771347 - 2² = 42771343 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42771341) 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, 44168 + ... + 45125.

It is an arithmetic number, because the mean of its divisors is an integer number (10715280).

Almost surely, 2^42771347 is an apocalyptic number.

42771347 is a deficient number, since it is larger than the sum of its proper divisors (89773).

42771347 is an equidigital number, since it uses as much as digits as its factorization.

42771347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89772.

The product of its digits is 32928, while the sum is 35.

The square root of 42771347 is about 6539.9806574638. The cubic root of 42771347 is about 349.7177234243.

The spelling of 42771347 in words is "forty-two million, seven hundred seventy-one thousand, three hundred forty-seven".