73455749 has 2 divisors, whose sum is σ = 73455750. Its totient is φ = 73455748.

The previous prime is 73455743. The next prime is 73455757. The reversal of 73455749 is 94755437.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 67354849 + 6100900 = 8207^2 + 2470^2 .

It is a cyclic number.

It is not a de Polignac number, because 73455749 - 2⁸ = 73455493 is a prime.

It is a super-2 number, since 2×73455749² = 10791494122302002, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (73455743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36727874 + 36727875.

It is an arithmetic number, because the mean of its divisors is an integer number (36727875).

Almost surely, 2^73455749 is an apocalyptic number.

It is an amenable number.

73455749 is a deficient number, since it is larger than the sum of its proper divisors (1).

73455749 is an equidigital number, since it uses as much as digits as its factorization.

73455749 is an evil number, because the sum of its binary digits is even.

The product of its digits is 529200, while the sum is 44.

The square root of 73455749 is about 8570.6329404543. The cubic root of 73455749 is about 418.8018554926.

The spelling of 73455749 in words is "seventy-three million, four hundred fifty-five thousand, seven hundred forty-nine".