73815733 has 2 divisors, whose sum is σ = 73815734. Its totient is φ = 73815732.

The previous prime is 73815727. The next prime is 73815823. The reversal of 73815733 is 33751837.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 44849809 + 28965924 = 6697^2 + 5382^2 .

It is a cyclic number.

It is not a de Polignac number, because 73815733 - 2²⁵ = 40261301 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 73815692 and 73815701.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (73815233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36907866 + 36907867.

It is an arithmetic number, because the mean of its divisors is an integer number (36907867).

Almost surely, 2^73815733 is an apocalyptic number.

It is an amenable number.

73815733 is a deficient number, since it is larger than the sum of its proper divisors (1).

73815733 is an equidigital number, since it uses as much as digits as its factorization.

73815733 is an evil number, because the sum of its binary digits is even.

The product of its digits is 52920, while the sum is 37.

The square root of 73815733 is about 8591.6082894881. The cubic root of 73815733 is about 419.4848805710.

It can be divided in two parts, 738 and 15733, that added together give a triangular number (16471 = T₁₈₁).

The spelling of 73815733 in words is "seventy-three million, eight hundred fifteen thousand, seven hundred thirty-three".