427784073 has 16 divisors (see below), whose sum is σ = 604863936. Its totient is φ = 267998720.

The previous prime is 427784053. The next prime is 427784087. The reversal of 427784073 is 370487724.

It is a cyclic number.

It is not a de Polignac number, because 427784073 - 2⁶ = 427784009 is a prime.

It is a super-2 number, since 2×427784073² = 365998426224938658, which contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (427784053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28693 + ... + 40973.

It is an arithmetic number, because the mean of its divisors is an integer number (37803996).

Almost surely, 2^427784073 is an apocalyptic number.

It is an amenable number.

427784073 is a deficient number, since it is larger than the sum of its proper divisors (177079863).

427784073 is a wasteful number, since it uses less digits than its factorization.

427784073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12984.

The product of its (nonzero) digits is 263424, while the sum is 42.

The square root of 427784073 is about 20682.9415944638. The cubic root of 427784073 is about 753.4854499816.

The spelling of 427784073 in words is "four hundred twenty-seven million, seven hundred eighty-four thousand, seventy-three".