21594098 has 8 divisors (see below), whose sum is σ = 32694192. Its totient is φ = 10696036.

The previous prime is 21594091. The next prime is 21594101. The reversal of 21594098 is 89049512.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (21594091) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50240 + ... + 50667.

It is an arithmetic number, because the mean of its divisors is an integer number (4086774).

Almost surely, 2^21594098 is an apocalyptic number.

21594098 is a deficient number, since it is larger than the sum of its proper divisors (11100094).

21594098 is a wasteful number, since it uses less digits than its factorization.

21594098 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101016.

The product of its (nonzero) digits is 25920, while the sum is 38.

The square root of 21594098 is about 4646.9450179661. The cubic root of 21594098 is about 278.4699622827.

The spelling of 21594098 in words is "twenty-one million, five hundred ninety-four thousand, ninety-eight".