745526987 has 4 divisors (see below), whose sum is σ = 745990800. Its totient is φ = 745063176.

The previous prime is 745526939. The next prime is 745527007. The reversal of 745526987 is 789625547.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 745526987 - 2¹⁴ = 745510603 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (745526927) 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, 229487 + ... + 232712.

It is an arithmetic number, because the mean of its divisors is an integer number (186497700).

Almost surely, 2^745526987 is an apocalyptic number.

745526987 is a deficient number, since it is larger than the sum of its proper divisors (463813).

745526987 is a wasteful number, since it uses less digits than its factorization.

745526987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 463812.

The product of its digits is 4233600, while the sum is 53.

The square root of 745526987 is about 27304.3400762589. The cubic root of 745526987 is about 906.7504705703.

The spelling of 745526987 in words is "seven hundred forty-five million, five hundred twenty-six thousand, nine hundred eighty-seven".