92121900 has 216 divisors, whose sum is σ = 304980480. Its totient is φ = 21415680.

The previous prime is 92121889. The next prime is 92121901. The reversal of 92121900 is 912129.

It is a super-2 number, since 2×92121900² = 16972888919220000, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (92121901) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1166061 + ... + 1166139.

Almost surely, 2^92121900 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 92121900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (152490240).

92121900 is an abundant number, since it is smaller than the sum of its proper divisors (212858580).

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

92121900 is a wasteful number, since it uses less digits than its factorization.

92121900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145 (or 125 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 24.

The square root of 92121900 is about 9598.0154198668. The cubic root of 92121900 is about 451.6350396709.

The spelling of 92121900 in words is "ninety-two million, one hundred twenty-one thousand, nine hundred".