90921346 has 24 divisors (see below), whose sum is σ = 150106320. Its totient is φ = 41186376.

The previous prime is 90921343. The next prime is 90921349. The reversal of 90921346 is 64312909.

It is an interprime number because it is at equal distance from previous prime (90921343) and next prime (90921349).

It is not an unprimeable number, because it can be changed into a prime (90921343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17841 + ... + 22363.

It is an arithmetic number, because the mean of its divisors is an integer number (6254430).

Almost surely, 2^90921346 is an apocalyptic number.

90921346 is a deficient number, since it is larger than the sum of its proper divisors (59184974).

90921346 is a wasteful number, since it uses less digits than its factorization.

90921346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4590 (or 4567 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 34.

The square root of 90921346 is about 9535.2685331877. The cubic root of 90921346 is about 449.6645170318.

The spelling of 90921346 in words is "ninety million, nine hundred twenty-one thousand, three hundred forty-six".