73499773 has 2 divisors, whose sum is σ = 73499774. Its totient is φ = 73499772.

The previous prime is 73499761. The next prime is 73499779. The reversal of 73499773 is 37799437.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42341049 + 31158724 = 6507^2 + 5582^2 .

It is a cyclic number.

It is not a de Polignac number, because 73499773 - 2¹³ = 73491581 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (73499779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36749886 + 36749887.

It is an arithmetic number, because the mean of its divisors is an integer number (36749887).

Almost surely, 2^73499773 is an apocalyptic number.

It is an amenable number.

73499773 is a deficient number, since it is larger than the sum of its proper divisors (1).

73499773 is an equidigital number, since it uses as much as digits as its factorization.

73499773 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1000188, while the sum is 49.

The square root of 73499773 is about 8573.2008608221. The cubic root of 73499773 is about 418.8855051775.

The spelling of 73499773 in words is "seventy-three million, four hundred ninety-nine thousand, seven hundred seventy-three".