27920106 has 32 divisors (see below), whose sum is σ = 62978880. Its totient is φ = 9166608.

The previous prime is 27920093. The next prime is 27920117. The reversal of 27920106 is 60102972.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 27920106.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 241 + ... + 7476.

It is an arithmetic number, because the mean of its divisors is an integer number (1968090).

Almost surely, 2^27920106 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27920106, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31489440).

27920106 is an abundant number, since it is smaller than the sum of its proper divisors (35058774).

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

27920106 is a wasteful number, since it uses less digits than its factorization.

27920106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7795 (or 7789 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 27920106 is about 5283.9479558376. The cubic root of 27920106 is about 303.3698062920.

The spelling of 27920106 in words is "twenty-seven million, nine hundred twenty thousand, one hundred six".