996869790 has 96 divisors (see below), whose sum is σ = 3057739776. Its totient is φ = 220501440.

The previous prime is 996869771. The next prime is 996869801. The reversal of 996869790 is 97968699.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5992 + ... + 45051.

It is an arithmetic number, because the mean of its divisors is an integer number (31851456).

Almost surely, 2^996869790 is an apocalyptic number.

996869790 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 996869790, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1528869888).

996869790 is an abundant number, since it is smaller than the sum of its proper divisors (2060869986).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

996869790 is a wasteful number, since it uses less digits than its factorization.

996869790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51094 (or 51091 counting only the distinct ones).

The product of its (nonzero) digits is 13226976, while the sum is 63.

The square root of 996869790 is about 31573.2448443298. The cubic root of 996869790 is about 998.9555060790.

The spelling of 996869790 in words is "nine hundred ninety-six million, eight hundred sixty-nine thousand, seven hundred ninety".