66986702 has 8 divisors (see below), whose sum is σ = 102930912. Its totient is φ = 32676400.

The previous prime is 66986701. The next prime is 66986729. The reversal of 66986702 is 20768966.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66986701) 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, 408374 + ... + 408537.

It is an arithmetic number, because the mean of its divisors is an integer number (12866364).

Almost surely, 2^66986702 is an apocalyptic number.

66986702 is a deficient number, since it is larger than the sum of its proper divisors (35944210).

66986702 is a wasteful number, since it uses less digits than its factorization.

66986702 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 816954.

The product of its (nonzero) digits is 217728, while the sum is 44.

The square root of 66986702 is about 8184.5404269269. The cubic root of 66986702 is about 406.1279373877.

The spelling of 66986702 in words is "sixty-six million, nine hundred eighty-six thousand, seven hundred two".