42084747 has 12 divisors (see below), whose sum is σ = 60848424. Its totient is φ = 28029120.

The previous prime is 42084739. The next prime is 42084761. The reversal of 42084747 is 74748024.

It is not a de Polignac number, because 42084747 - 2³ = 42084739 is a prime.

It is a super-2 number, since 2×42084747² = 3542251860108018, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (42084727) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12472 + ... + 15482.

It is an arithmetic number, because the mean of its divisors is an integer number (5070702).

Almost surely, 2^42084747 is an apocalyptic number.

42084747 is a deficient number, since it is larger than the sum of its proper divisors (18763677).

42084747 is a wasteful number, since it uses less digits than its factorization.

42084747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4570 (or 4567 counting only the distinct ones).

The product of its (nonzero) digits is 50176, while the sum is 36.

The square root of 42084747 is about 6487.2757764720. The cubic root of 42084747 is about 347.8363033116.

The spelling of 42084747 in words is "forty-two million, eighty-four thousand, seven hundred forty-seven".