21376098 has 12 divisors (see below), whose sum is σ = 46314918. Its totient is φ = 7125360.

The previous prime is 21376093. The next prime is 21376133. The reversal of 21376098 is 89067312.

It can be written as a sum of positive squares in only one way, i.e., 21372129 + 3969 = 4623^2 + 63^2 .

It is not an unprimeable number, because it can be changed into a prime (21376093) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 593763 + ... + 593798.

Almost surely, 2^21376098 is an apocalyptic number.

21376098 is an abundant number, since it is smaller than the sum of its proper divisors (24938820).

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

21376098 is a wasteful number, since it uses less digits than its factorization.

21376098 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1187569 (or 1187566 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 21376098 is about 4623.4292467821. The cubic root of 21376098 is about 277.5297070705.

The spelling of 21376098 in words is "twenty-one million, three hundred seventy-six thousand, ninety-eight".