745765773 has 4 divisors (see below), whose sum is σ = 994354368. Its totient is φ = 497177180.

The previous prime is 745765771. The next prime is 745765781. The reversal of 745765773 is 377567547.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 745765773 - 2¹ = 745765771 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (745765771) 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, 124294293 + ... + 124294298.

It is an arithmetic number, because the mean of its divisors is an integer number (248588592).

Almost surely, 2^745765773 is an apocalyptic number.

It is an amenable number.

745765773 is a deficient number, since it is larger than the sum of its proper divisors (248588595).

745765773 is a wasteful number, since it uses less digits than its factorization.

745765773 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248588594.

The product of its digits is 4321800, while the sum is 51.

The square root of 745765773 is about 27308.7124009903. The cubic root of 745765773 is about 906.8472684101.

The spelling of 745765773 in words is "seven hundred forty-five million, seven hundred sixty-five thousand, seven hundred seventy-three".