902328921 has 12 divisors (see below), whose sum is σ = 1403622948. Its totient is φ = 555279264.

The previous prime is 902328919. The next prime is 902328937. The reversal of 902328921 is 129823209.

902328921 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 618069321 + 284259600 = 24861^2 + 16860^2 .

It is not a de Polignac number, because 902328921 - 2¹ = 902328919 is a prime.

It is not an unprimeable number, because it can be changed into a prime (902328971) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3855990 + ... + 3856223.

It is an arithmetic number, because the mean of its divisors is an integer number (116968579).

Almost surely, 2^902328921 is an apocalyptic number.

It is an amenable number.

902328921 is a deficient number, since it is larger than the sum of its proper divisors (501294027).

902328921 is a wasteful number, since it uses less digits than its factorization.

902328921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7712232 (or 7712229 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 902328921 is about 30038.7902719134. The cubic root of 902328921 is about 966.3214630394.

The spelling of 902328921 in words is "nine hundred two million, three hundred twenty-eight thousand, nine hundred twenty-one".