73239743 has 2 divisors, whose sum is σ = 73239744. Its totient is φ = 73239742.

The previous prime is 73239731. The next prime is 73239767. The reversal of 73239743 is 34793237.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 73239743 - 2¹⁰ = 73238719 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 73239697 and 73239706.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (73236743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36619871 + 36619872.

It is an arithmetic number, because the mean of its divisors is an integer number (36619872).

Almost surely, 2^73239743 is an apocalyptic number.

73239743 is a deficient number, since it is larger than the sum of its proper divisors (1).

73239743 is an equidigital number, since it uses as much as digits as its factorization.

73239743 is an evil number, because the sum of its binary digits is even.

The product of its digits is 95256, while the sum is 38.

The square root of 73239743 is about 8558.0221429954. The cubic root of 73239743 is about 418.3909390186.

The spelling of 73239743 in words is "seventy-three million, two hundred thirty-nine thousand, seven hundred forty-three".