921692682 has 96 divisors (see below), whose sum is σ = 2158700544. Its totient is φ = 294418800.

The previous prime is 921692647. The next prime is 921692683. The reversal of 921692682 is 286296129.

It is not an unprimeable number, because it can be changed into a prime (921692683) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1973413 + ... + 1973879.

It is an arithmetic number, because the mean of its divisors is an integer number (22486464).

Almost surely, 2^921692682 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 921692682, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1079350272).

921692682 is an abundant number, since it is smaller than the sum of its proper divisors (1237007862).

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

921692682 is a wasteful number, since it uses less digits than its factorization.

921692682 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 646 (or 634 counting only the distinct ones).

The product of its digits is 186624, while the sum is 45.

The square root of 921692682 is about 30359.3919899592. The cubic root of 921692682 is about 973.1849403421.

The spelling of 921692682 in words is "nine hundred twenty-one million, six hundred ninety-two thousand, six hundred eighty-two".