73406765 has 8 divisors (see below), whose sum is σ = 93269880. Its totient is φ = 55270912.

The previous prime is 73406759. The next prime is 73406783. The reversal of 73406765 is 56760437.

It can be written as a sum of positive squares in 4 ways, for example, as 1054729 + 72352036 = 1027^2 + 8506^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 73406765 - 2²⁴ = 56629549 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 431720 + ... + 431889.

It is an arithmetic number, because the mean of its divisors is an integer number (11658735).

Almost surely, 2^73406765 is an apocalyptic number.

It is an amenable number.

73406765 is a deficient number, since it is larger than the sum of its proper divisors (19863115).

73406765 is a wasteful number, since it uses less digits than its factorization.

73406765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 863631.

The product of its (nonzero) digits is 105840, while the sum is 38.

The square root of 73406765 is about 8567.7747986277. The cubic root of 73406765 is about 418.7087420553.

The spelling of 73406765 in words is "seventy-three million, four hundred six thousand, seven hundred sixty-five".