73280783 has 12 divisors (see below), whose sum is σ = 77574840. Its totient is φ = 69208656.

The previous prime is 73280771. The next prime is 73280789. The reversal of 73280783 is 38708237.

It is not a de Polignac number, because 73280783 - 2⁶ = 73280719 is a prime.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73280789) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 43073 + ... + 44741.

It is an arithmetic number, because the mean of its divisors is an integer number (6464570).

Almost surely, 2^73280783 is an apocalyptic number.

73280783 is a deficient number, since it is larger than the sum of its proper divisors (4294057).

73280783 is a wasteful number, since it uses less digits than its factorization.

73280783 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1798 (or 1775 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 38.

The square root of 73280783 is about 8560.4195574750. The cubic root of 73280783 is about 418.4690730900.

The spelling of 73280783 in words is "seventy-three million, two hundred eighty thousand, seven hundred eighty-three".