42947277 has 8 divisors (see below), whose sum is σ = 60276960. Its totient is φ = 27124560.

The previous prime is 42947257. The next prime is 42947309. The reversal of 42947277 is 77274924.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 42947277 - 2¹⁴ = 42930893 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42947207) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 376674 + ... + 376787.

It is an arithmetic number, because the mean of its divisors is an integer number (7534620).

Almost surely, 2^42947277 is an apocalyptic number.

It is an amenable number.

42947277 is a deficient number, since it is larger than the sum of its proper divisors (17329683).

42947277 is a wasteful number, since it uses less digits than its factorization.

42947277 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 753483.

The product of its digits is 197568, while the sum is 42.

The square root of 42947277 is about 6553.4172002094. The cubic root of 42947277 is about 350.1965616982.

The spelling of 42947277 in words is "forty-two million, nine hundred forty-seven thousand, two hundred seventy-seven".