826452745 has 4 divisors (see below), whose sum is σ = 991743300. Its totient is φ = 661162192.

The previous prime is 826452719. The next prime is 826452751. The reversal of 826452745 is 547254628.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 459845136 + 366607609 = 21444^2 + 19147^2 .

It is a cyclic number.

It is not a de Polignac number, because 826452745 - 2⁵ = 826452713 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 82645270 + ... + 82645279.

It is an arithmetic number, because the mean of its divisors is an integer number (247935825).

Almost surely, 2^826452745 is an apocalyptic number.

It is an amenable number.

826452745 is a deficient number, since it is larger than the sum of its proper divisors (165290555).

826452745 is a wasteful number, since it uses less digits than its factorization.

826452745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165290554.

The product of its digits is 537600, while the sum is 43.

The square root of 826452745 is about 28748.0911540227. The cubic root of 826452745 is about 938.4389152350.

It can be divided in two parts, 8264 and 52745, that added together give a square (61009 = 247²).

The spelling of 826452745 in words is "eight hundred twenty-six million, four hundred fifty-two thousand, seven hundred forty-five".