921208848 has 40 divisors (see below), whose sum is σ = 2719760448. Its totient is φ = 263202432.

The previous prime is 921208843. The next prime is 921208859. The reversal of 921208848 is 848802129.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (921208843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1370511 + ... + 1371182.

Almost surely, 2^921208848 is an apocalyptic number.

It is an amenable number.

921208848 is an abundant number, since it is smaller than the sum of its proper divisors (1798551600).

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

921208848 is a wasteful number, since it uses less digits than its factorization.

921208848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2741711 (or 2741705 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 42.

The square root of 921208848 is about 30351.4225037312. The cubic root of 921208848 is about 973.0146224090.

The spelling of 921208848 in words is "nine hundred twenty-one million, two hundred eight thousand, eight hundred forty-eight".