745000637 has 4 divisors (see below), whose sum is σ = 745449216. Its totient is φ = 744552060.

The previous prime is 745000591. The next prime is 745000667. The reversal of 745000637 is 736000547.

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 745000637 - 2¹⁰ = 744999613 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 (745000667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 221789 + ... + 225122.

It is an arithmetic number, because the mean of its divisors is an integer number (186362304).

Almost surely, 2^745000637 is an apocalyptic number.

It is an amenable number.

745000637 is a deficient number, since it is larger than the sum of its proper divisors (448579).

745000637 is a wasteful number, since it uses less digits than its factorization.

745000637 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 448578.

The product of its (nonzero) digits is 17640, while the sum is 32.

The square root of 745000637 is about 27294.6997968470. The cubic root of 745000637 is about 906.5370284990.

The spelling of 745000637 in words is "seven hundred forty-five million, six hundred thirty-seven", and thus it is an aban number.