744864773 has 4 divisors (see below), whose sum is σ = 747497088. Its totient is φ = 742232460.

The previous prime is 744864751. The next prime is 744864811. The reversal of 744864773 is 377468447.

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, and also an emirpimes, since its reverse is a distinct semiprime: 377468447 = 71 ⋅5316457.

It is a cyclic number.

It is not a de Polignac number, because 744864773 - 2¹⁴ = 744848389 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 (744864713) 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, 1315733 + ... + 1316298.

It is an arithmetic number, because the mean of its divisors is an integer number (186874272).

Almost surely, 2^744864773 is an apocalyptic number.

It is an amenable number.

744864773 is a deficient number, since it is larger than the sum of its proper divisors (2632315).

744864773 is a wasteful number, since it uses less digits than its factorization.

744864773 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2632314.

The product of its digits is 3161088, while the sum is 50.

The square root of 744864773 is about 27292.2108485187. The cubic root of 744864773 is about 906.4819174791.

The spelling of 744864773 in words is "seven hundred forty-four million, eight hundred sixty-four thousand, seven hundred seventy-three".