745268817 has 4 divisors (see below), whose sum is σ = 993691760. Its totient is φ = 496845876.

The previous prime is 745268813. The next prime is 745268833. The reversal of 745268817 is 718862547.

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 not a de Polignac number, because 745268817 - 2² = 745268813 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (745268813) 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, 124211467 + ... + 124211472.

It is an arithmetic number, because the mean of its divisors is an integer number (248422940).

Almost surely, 2^745268817 is an apocalyptic number.

It is an amenable number.

745268817 is a deficient number, since it is larger than the sum of its proper divisors (248422943).

745268817 is a wasteful number, since it uses less digits than its factorization.

745268817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248422942.

The product of its digits is 752640, while the sum is 48.

The square root of 745268817 is about 27299.6120302102. The cubic root of 745268817 is about 906.6457916877.

The spelling of 745268817 in words is "seven hundred forty-five million, two hundred sixty-eight thousand, eight hundred seventeen".