66983049 has 36 divisors (see below), whose sum is σ = 114279984. Its totient is φ = 37688112.

The previous prime is 66983047. The next prime is 66983083. The reversal of 66983049 is 94038966.

It is not a de Polignac number, because 66983049 - 2¹ = 66983047 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 66982995 and 66983013.

It is not an unprimeable number, because it can be changed into a prime (66983047) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 28414 + ... + 30680.

It is an arithmetic number, because the mean of its divisors is an integer number (3174444).

Almost surely, 2^66983049 is an apocalyptic number.

It is an amenable number.

66983049 is a deficient number, since it is larger than the sum of its proper divisors (47296935).

66983049 is a wasteful number, since it uses less digits than its factorization.

66983049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2354 (or 2344 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 45.

The square root of 66983049 is about 8184.3172592465. The cubic root of 66983049 is about 406.1205547666.

The spelling of 66983049 in words is "sixty-six million, nine hundred eighty-three thousand, forty-nine".