73791428 has 12 divisors (see below), whose sum is σ = 133588140. Its totient is φ = 35623392.

The previous prime is 73791391. The next prime is 73791433. The reversal of 73791428 is 82419737.

It can be written as a sum of positive squares in 2 ways, for example, as 17960644 + 55830784 = 4238^2 + 7472^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 317951 + ... + 318182.

It is an arithmetic number, because the mean of its divisors is an integer number (11132345).

Almost surely, 2^73791428 is an apocalyptic number.

It is an amenable number.

73791428 is a deficient number, since it is larger than the sum of its proper divisors (59796712).

73791428 is a wasteful number, since it uses less digits than its factorization.

73791428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 636166 (or 636164 counting only the distinct ones).

The product of its digits is 84672, while the sum is 41.

The square root of 73791428 is about 8590.1937114363. The cubic root of 73791428 is about 419.4388348351.

The spelling of 73791428 in words is "seventy-three million, seven hundred ninety-one thousand, four hundred twenty-eight".