42727786 has 8 divisors (see below), whose sum is σ = 64659204. Its totient is φ = 21174720.

The previous prime is 42727777. The next prime is 42727787. The reversal of 42727786 is 68772724.

It can be written as a sum of positive squares in 2 ways, for example, as 33235225 + 9492561 = 5765^2 + 3081^2 .

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

It is not an unprimeable number, because it can be changed into a prime (42727787) 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, 94305 + ... + 94756.

Almost surely, 2^42727786 is an apocalyptic number.

42727786 is a deficient number, since it is larger than the sum of its proper divisors (21931418).

42727786 is a wasteful number, since it uses less digits than its factorization.

42727786 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189176.

The product of its digits is 263424, while the sum is 43.

The square root of 42727786 is about 6536.6494475381. The cubic root of 42727786 is about 349.5989583357.

The spelling of 42727786 in words is "forty-two million, seven hundred twenty-seven thousand, seven hundred eighty-six".