27970620 has 48 divisors (see below), whose sum is σ = 78654240. Its totient is φ = 7426816.

The previous prime is 27970609. The next prime is 27970633. The reversal of 27970620 is 2607972.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15274 + ... + 17006.

It is an arithmetic number, because the mean of its divisors is an integer number (1638630).

Almost surely, 2^27970620 is an apocalyptic number.

27970620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27970620 is an abundant number, since it is smaller than the sum of its proper divisors (50683620).

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

27970620 is a wasteful number, since it uses less digits than its factorization.

27970620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2014 (or 2012 counting only the distinct ones).

The product of its (nonzero) digits is 10584, while the sum is 33.

The square root of 27970620 is about 5288.7257444492. The cubic root of 27970620 is about 303.5526517040.

The spelling of 27970620 in words is "twenty-seven million, nine hundred seventy thousand, six hundred twenty".