73402723 has 4 divisors (see below), whose sum is σ = 73467648. Its totient is φ = 73337800.

The previous prime is 73402717. The next prime is 73402733. The reversal of 73402723 is 32720437.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 73402723 - 2⁹ = 73402211 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 73402691 and 73402700.

It is not an unprimeable number, because it can be changed into a prime (73402733) 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, 30736 + ... + 33037.

It is an arithmetic number, because the mean of its divisors is an integer number (18366912).

Almost surely, 2^73402723 is an apocalyptic number.

73402723 is a deficient number, since it is larger than the sum of its proper divisors (64925).

73402723 is a wasteful number, since it uses less digits than its factorization.

73402723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64924.

The product of its (nonzero) digits is 7056, while the sum is 28.

The square root of 73402723 is about 8567.5389114961. The cubic root of 73402723 is about 418.7010567881.

The spelling of 73402723 in words is "seventy-three million, four hundred two thousand, seven hundred twenty-three".