8921900 has 36 divisors (see below), whose sum is σ = 20852832. Its totient is φ = 3293760.

The previous prime is 8921873. The next prime is 8921911. The reversal of 8921900 is 91298.

It is a super-2 number, since 2×8921900² = 159200599220000, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2132 + ... + 4731.

Almost surely, 2^8921900 is an apocalyptic number.

It is an amenable number.

8921900 is an abundant number, since it is smaller than the sum of its proper divisors (11930932).

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

8921900 is a wasteful number, since it uses less digits than its factorization.

8921900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6890 (or 6883 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 29.

The square root of 8921900 is about 2986.9549712040. The cubic root of 8921900 is about 207.4049499347.

The spelling of 8921900 in words is "eight million, nine hundred twenty-one thousand, nine hundred".