20827634 has 8 divisors (see below), whose sum is σ = 31332528. Its totient is φ = 10383460.

The previous prime is 20827613. The next prime is 20827663. The reversal of 20827634 is 43672802.

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

20827634 is a modest number, since divided by 7634 gives 2082 as remainder.

It is a self number, because there is not a number n which added to its sum of digits gives 20827634.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14312 + ... + 15699.

It is an arithmetic number, because the mean of its divisors is an integer number (3916566).

Almost surely, 2^20827634 is an apocalyptic number.

20827634 is a deficient number, since it is larger than the sum of its proper divisors (10504894).

20827634 is a wasteful number, since it uses less digits than its factorization.

20827634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30360.

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 20827634 is about 4563.7302724854. The cubic root of 20827634 is about 275.1355100741.

The spelling of 20827634 in words is "twenty million, eight hundred twenty-seven thousand, six hundred thirty-four".