745192889 has 8 divisors (see below), whose sum is σ = 853281600. Its totient is φ = 637512336.

The previous prime is 745192867. The next prime is 745192891. The reversal of 745192889 is 988291547.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 745192889 - 2²⁸ = 476757433 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 745192889.

It is not an unprimeable number, because it can be changed into a prime (745192489) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 98114 + ... + 105435.

It is an arithmetic number, because the mean of its divisors is an integer number (106660200).

Almost surely, 2^745192889 is an apocalyptic number.

It is an amenable number.

745192889 is a deficient number, since it is larger than the sum of its proper divisors (108088711).

745192889 is a wasteful number, since it uses less digits than its factorization.

745192889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204079.

The product of its digits is 1451520, while the sum is 53.

The square root of 745192889 is about 27298.2213523152. The cubic root of 745192889 is about 906.6150009457.

The spelling of 745192889 in words is "seven hundred forty-five million, one hundred ninety-two thousand, eight hundred eighty-nine".