73828666 has 32 divisors (see below), whose sum is σ = 119242368. Its totient is φ = 34203840.

The previous prime is 73828631. The next prime is 73828669. The reversal of 73828666 is 66682837.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is not an unprimeable number, because it can be changed into a prime (73828669) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 232740 + ... + 233056.

It is an arithmetic number, because the mean of its divisors is an integer number (3726324).

Almost surely, 2^73828666 is an apocalyptic number.

73828666 is a deficient number, since it is larger than the sum of its proper divisors (45413702).

73828666 is a wasteful number, since it uses less digits than its factorization.

73828666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 486.

The product of its digits is 580608, while the sum is 46.

The square root of 73828666 is about 8592.3609095522. The cubic root of 73828666 is about 419.5093779734.

The spelling of 73828666 in words is "seventy-three million, eight hundred twenty-eight thousand, six hundred sixty-six".