21198062 has 4 divisors (see below), whose sum is σ = 31797096. Its totient is φ = 10599030.

The previous prime is 21198029. The next prime is 21198083. The reversal of 21198062 is 26089112.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5299514 + ... + 5299517.

It is an arithmetic number, because the mean of its divisors is an integer number (7949274).

Almost surely, 2^21198062 is an apocalyptic number.

21198062 is a deficient number, since it is larger than the sum of its proper divisors (10599034).

21198062 is a wasteful number, since it uses less digits than its factorization.

21198062 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10599033.

The product of its (nonzero) digits is 1728, while the sum is 29.

The square root of 21198062 is about 4604.1353151270. The cubic root of 21198062 is about 276.7570669571.

The spelling of 21198062 in words is "twenty-one million, one hundred ninety-eight thousand, sixty-two".