828808901 has 4 divisors (see below), whose sum is σ = 855544704. Its totient is φ = 802073100.

The previous prime is 828808873. The next prime is 828808907. The reversal of 828808901 is 109808828.

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 a de Polignac number, because none of the positive numbers 2^k-828808901 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 (828808907) 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, 13367855 + ... + 13367916.

It is an arithmetic number, because the mean of its divisors is an integer number (213886176).

Almost surely, 2^828808901 is an apocalyptic number.

It is an amenable number.

828808901 is a deficient number, since it is larger than the sum of its proper divisors (26735803).

828808901 is a wasteful number, since it uses less digits than its factorization.

828808901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26735802.

The product of its (nonzero) digits is 73728, while the sum is 44.

The square root of 828808901 is about 28789.0413352025. The cubic root of 828808901 is about 939.3298758615.

The spelling of 828808901 in words is "eight hundred twenty-eight million, eight hundred eight thousand, nine hundred one".