66936898 has 16 divisors (see below), whose sum is σ = 114854400. Its totient is φ = 28660896.

The previous prime is 66936833. The next prime is 66936899. The reversal of 66936898 is 89863966.

66936898 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (66936899) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26703 + ... + 29101.

It is an arithmetic number, because the mean of its divisors is an integer number (7178400).

Almost surely, 2^66936898 is an apocalyptic number.

66936898 is a deficient number, since it is larger than the sum of its proper divisors (47917502).

66936898 is a wasteful number, since it uses less digits than its factorization.

66936898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4401.

The product of its digits is 3359232, while the sum is 55.

The square root of 66936898 is about 8181.4972957277. The cubic root of 66936898 is about 406.0272616313.

The spelling of 66936898 in words is "sixty-six million, nine hundred thirty-six thousand, eight hundred ninety-eight".