21327058 has 4 divisors (see below), whose sum is σ = 31990590. Its totient is φ = 10663528.

The previous prime is 21327043. The next prime is 21327067. The reversal of 21327058 is 85072312.

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

It can be written as a sum of positive squares in only one way, i.e., 13890529 + 7436529 = 3727^2 + 2727^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5331763 + ... + 5331766.

Almost surely, 2^21327058 is an apocalyptic number.

21327058 is a deficient number, since it is larger than the sum of its proper divisors (10663532).

21327058 is a wasteful number, since it uses less digits than its factorization.

21327058 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10663531.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 21327058 is about 4618.1227787923. The cubic root of 21327058 is about 277.3173128664.

The spelling of 21327058 in words is "twenty-one million, three hundred twenty-seven thousand, fifty-eight".