73934778 has 16 divisors (see below), whose sum is σ = 148080096. Its totient is φ = 24609840.

The previous prime is 73934771. The next prime is 73934803. The reversal of 73934778 is 87743937.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (73934771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4008 + ... + 12803.

It is an arithmetic number, because the mean of its divisors is an integer number (9255006).

Almost surely, 2^73934778 is an apocalyptic number.

73934778 is an abundant number, since it is smaller than the sum of its proper divisors (74145318).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

73934778 is a wasteful number, since it uses less digits than its factorization.

73934778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17549.

The product of its digits is 889056, while the sum is 48.

The square root of 73934778 is about 8598.5334796115. The cubic root of 73934778 is about 419.7102650263.

The spelling of 73934778 in words is "seventy-three million, nine hundred thirty-four thousand, seven hundred seventy-eight".