73776743 has 2 divisors, whose sum is σ = 73776744. Its totient is φ = 73776742.

The previous prime is 73776679. The next prime is 73776749. The reversal of 73776743 is 34767737.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 73776743 - 2⁶ = 73776679 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 73776694 and 73776703.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (73776749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36888371 + 36888372.

It is an arithmetic number, because the mean of its divisors is an integer number (36888372).

Almost surely, 2^73776743 is an apocalyptic number.

73776743 is a deficient number, since it is larger than the sum of its proper divisors (1).

73776743 is an equidigital number, since it uses as much as digits as its factorization.

73776743 is an evil number, because the sum of its binary digits is even.

The product of its digits is 518616, while the sum is 44.

The square root of 73776743 is about 8589.3389151902. The cubic root of 73776743 is about 419.4110092547.

The spelling of 73776743 in words is "seventy-three million, seven hundred seventy-six thousand, seven hundred forty-three".