73772533 has 2 divisors, whose sum is σ = 73772534. Its totient is φ = 73772532.

The previous prime is 73772527. The next prime is 73772581. The reversal of 73772533 is 33527737.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 45064369 + 28708164 = 6713^2 + 5358^2 .

It is a cyclic number.

It is not a de Polignac number, because 73772533 - 2⁹ = 73772021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 73772492 and 73772501.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (73772233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36886266 + 36886267.

It is an arithmetic number, because the mean of its divisors is an integer number (36886267).

Almost surely, 2^73772533 is an apocalyptic number.

It is an amenable number.

73772533 is a deficient number, since it is larger than the sum of its proper divisors (1).

73772533 is an equidigital number, since it uses as much as digits as its factorization.

73772533 is an evil number, because the sum of its binary digits is even.

The product of its digits is 92610, while the sum is 37.

The square root of 73772533 is about 8589.0938404467. The cubic root of 73772533 is about 419.4030313389.

It can be divided in two parts, 73772 and 533, that added together give a triangular number (74305 = T₃₈₅).

The spelling of 73772533 in words is "seventy-three million, seven hundred seventy-two thousand, five hundred thirty-three".