27950920 has 16 divisors (see below), whose sum is σ = 62889660. Its totient is φ = 11180352.

The previous prime is 27950887. The next prime is 27950921. The reversal of 27950920 is 2905972.

It can be written as a sum of positive squares in 2 ways, for example, as 27857284 + 93636 = 5278^2 + 306^2 .

It is not an unprimeable number, because it can be changed into a prime (27950921) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 349347 + ... + 349426.

Almost surely, 2^27950920 is an apocalyptic number.

27950920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27950920 is an abundant number, since it is smaller than the sum of its proper divisors (34938740).

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

27950920 is a wasteful number, since it uses less digits than its factorization.

27950920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 698784 (or 698780 counting only the distinct ones).

The product of its (nonzero) digits is 11340, while the sum is 34.

The square root of 27950920 is about 5286.8629639891. The cubic root of 27950920 is about 303.4813698648.

The spelling of 27950920 in words is "twenty-seven million, nine hundred fifty thousand, nine hundred twenty".