73878266 has 64 divisors (see below), whose sum is σ = 144322560. Its totient is φ = 27533760.

The previous prime is 73878221. The next prime is 73878293. The reversal of 73878266 is 66287837.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 73878266.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 426956 + ... + 427128.

It is an arithmetic number, because the mean of its divisors is an integer number (2255040).

Almost surely, 2^73878266 is an apocalyptic number.

73878266 is a deficient number, since it is larger than the sum of its proper divisors (70444294).

73878266 is a wasteful number, since it uses less digits than its factorization.

73878266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299.

The product of its digits is 677376, while the sum is 47.

The square root of 73878266 is about 8595.2467096646. The cubic root of 73878266 is about 419.6033026791.

The spelling of 73878266 in words is "seventy-three million, eight hundred seventy-eight thousand, two hundred sixty-six".