66089434 has 8 divisors (see below), whose sum is σ = 102552660. Its totient is φ = 31905216.

The previous prime is 66089431. The next prime is 66089447. The reversal of 66089434 is 43498066.

It can be written as a sum of positive squares in 2 ways, for example, as 63250209 + 2839225 = 7953^2 + 1685^2 .

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 (66089431) 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, 569679 + ... + 569794.

Almost surely, 2^66089434 is an apocalyptic number.

66089434 is a deficient number, since it is larger than the sum of its proper divisors (36463226).

66089434 is a wasteful number, since it uses less digits than its factorization.

66089434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1139504.

The product of its (nonzero) digits is 124416, while the sum is 40.

The square root of 66089434 is about 8129.5408234414. The cubic root of 66089434 is about 404.3064571795.

The spelling of 66089434 in words is "sixty-six million, eighty-nine thousand, four hundred thirty-four".