96921090 has 128 divisors (see below), whose sum is σ = 311040000. Its totient is φ = 20979648.

The previous prime is 96921067. The next prime is 96921091. The reversal of 96921090 is 9012969.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (96921091) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 34561 + ... + 37259.

It is an arithmetic number, because the mean of its divisors is an integer number (2430000).

Almost surely, 2^96921090 is an apocalyptic number.

96921090 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 96921090, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (155520000).

96921090 is an abundant number, since it is smaller than the sum of its proper divisors (214118910).

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

96921090 is a wasteful number, since it uses less digits than its factorization.

96921090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2741 (or 2735 counting only the distinct ones).

The product of its (nonzero) digits is 8748, while the sum is 36.

The square root of 96921090 is about 9844.8509384348. The cubic root of 96921090 is about 459.3454616575.

The spelling of 96921090 in words is "ninety-six million, nine hundred twenty-one thousand, ninety".