66962804 has 6 divisors (see below), whose sum is σ = 117184914. Its totient is φ = 33481400.

The previous prime is 66962803. The next prime is 66962843. The reversal of 66962804 is 40826966.

It can be written as a sum of positive squares in only one way, i.e., 58828900 + 8133904 = 7670^2 + 2852^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66962803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8370347 + ... + 8370354.

It is an arithmetic number, because the mean of its divisors is an integer number (19530819).

Almost surely, 2^66962804 is an apocalyptic number.

It is an amenable number.

66962804 is a deficient number, since it is larger than the sum of its proper divisors (50222110).

66962804 is a wasteful number, since it uses less digits than its factorization.

66962804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16740705 (or 16740703 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 41.

The square root of 66962804 is about 8183.0803491106. The cubic root of 66962804 is about 406.0796352642.

The spelling of 66962804 in words is "sixty-six million, nine hundred sixty-two thousand, eight hundred four".