745788653 has 4 divisors (see below), whose sum is σ = 748218240. Its totient is φ = 743359068.

The previous prime is 745788649. The next prime is 745788661. The reversal of 745788653 is 356887547.

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 745788653 - 2² = 745788649 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 745788595 and 745788604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (745788683) 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, 1214333 + ... + 1214946.

It is an arithmetic number, because the mean of its divisors is an integer number (187054560).

Almost surely, 2^745788653 is an apocalyptic number.

It is an amenable number.

745788653 is a deficient number, since it is larger than the sum of its proper divisors (2429587).

745788653 is a wasteful number, since it uses less digits than its factorization.

745788653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2429586.

The product of its digits is 5644800, while the sum is 53.

The square root of 745788653 is about 27309.1313117060. The cubic root of 745788653 is about 906.8565423019.

The spelling of 745788653 in words is "seven hundred forty-five million, seven hundred eighty-eight thousand, six hundred fifty-three".