828611990 has 16 divisors (see below), whose sum is σ = 1491928848. Its totient is φ = 331349856.

The previous prime is 828611969. The next prime is 828612013. The reversal of 828611990 is 99116828.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32789 + ... + 52271.

It is an arithmetic number, because the mean of its divisors is an integer number (93245553).

Almost surely, 2^828611990 is an apocalyptic number.

828611990 is a deficient number, since it is larger than the sum of its proper divisors (663316858).

828611990 is a wasteful number, since it uses less digits than its factorization.

828611990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23743.

The product of its (nonzero) digits is 62208, while the sum is 44.

The square root of 828611990 is about 28785.6212369996. The cubic root of 828611990 is about 939.2554803304.

The spelling of 828611990 in words is "eight hundred twenty-eight million, six hundred eleven thousand, nine hundred ninety".