66833434 has 4 divisors (see below), whose sum is σ = 100250154. Its totient is φ = 33416716.

The previous prime is 66833419. The next prime is 66833441. The reversal of 66833434 is 43433866.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 66830625 + 2809 = 8175^2 + 53^2 .

It is a junction number, because it is equal to n+sod(n) for n = 66833393 and 66833402.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16708357 + ... + 16708360.

Almost surely, 2^66833434 is an apocalyptic number.

66833434 is a deficient number, since it is larger than the sum of its proper divisors (33416720).

66833434 is a wasteful number, since it uses less digits than its factorization.

66833434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33416719.

The product of its digits is 124416, while the sum is 37.

The square root of 66833434 is about 8175.1718024761. The cubic root of 66833434 is about 405.8179557082.

The spelling of 66833434 in words is "sixty-six million, eight hundred thirty-three thousand, four hundred thirty-four".