73404743 has 4 divisors (see below), whose sum is σ = 73445808. Its totient is φ = 73363680.

The previous prime is 73404739. The next prime is 73404757. The reversal of 73404743 is 34740437.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34740437 = 3889 ⋅8933.

It is a cyclic number.

It is not a de Polignac number, because 73404743 - 2² = 73404739 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73404043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17723 + ... + 21468.

It is an arithmetic number, because the mean of its divisors is an integer number (18361452).

Almost surely, 2^73404743 is an apocalyptic number.

73404743 is a deficient number, since it is larger than the sum of its proper divisors (41065).

73404743 is a wasteful number, since it uses less digits than its factorization.

73404743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41064.

The product of its (nonzero) digits is 28224, while the sum is 32.

The square root of 73404743 is about 8567.6567975147. The cubic root of 73404743 is about 418.7048975556.

It can be divided in two parts, 73404 and 743, that added together give a palindrome (74147).

The spelling of 73404743 in words is "seventy-three million, four hundred four thousand, seven hundred forty-three".