16421098 has 16 divisors (see below), whose sum is σ = 25534080. Its totient is φ = 7914816.

The previous prime is 16421089. The next prime is 16421107. The reversal of 16421098 is 89012461.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (16421089) and next prime (16421107).

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 5586 + ... + 8002.

It is an arithmetic number, because the mean of its divisors is an integer number (1595880).

Almost surely, 2^16421098 is an apocalyptic number.

16421098 is a deficient number, since it is larger than the sum of its proper divisors (9112982).

16421098 is a wasteful number, since it uses less digits than its factorization.

16421098 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2541.

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 16421098 is about 4052.2953989066. The cubic root of 16421098 is about 254.1757210904.

The spelling of 16421098 in words is "sixteen million, four hundred twenty-one thousand, ninety-eight".