896628809 has 4 divisors (see below), whose sum is σ = 906703380. Its totient is φ = 886554240.

The previous prime is 896628797. The next prime is 896628833. The reversal of 896628809 is 908826698.

896628809 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 109265209 + 787363600 = 10453^2 + 28060^2 .

It is a cyclic number.

It is not a de Polignac number, because 896628809 - 2⁸ = 896628553 is a prime.

It is a super-2 number, since 2×896628809² = 1607886442257516962, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (896628869) 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, 5037152 + ... + 5037329.

It is an arithmetic number, because the mean of its divisors is an integer number (226675845).

Almost surely, 2^896628809 is an apocalyptic number.

896628809 is a gapful number since it is divisible by the number (89) formed by its first and last digit.

It is an amenable number.

896628809 is a deficient number, since it is larger than the sum of its proper divisors (10074571).

896628809 is a wasteful number, since it uses less digits than its factorization.

896628809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10074570.

The product of its (nonzero) digits is 2985984, while the sum is 56.

The square root of 896628809 is about 29943.7607691486. The cubic root of 896628809 is about 964.2823766161.

The spelling of 896628809 in words is "eight hundred ninety-six million, six hundred twenty-eight thousand, eight hundred nine".