27964390 has 32 divisors (see below), whose sum is σ = 54004320. Its totient is φ = 10393344.

The previous prime is 27964379. The next prime is 27964399. The reversal of 27964390 is 9346972.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27964399) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8682 + ... + 11458.

It is an arithmetic number, because the mean of its divisors is an integer number (1687635).

Almost surely, 2^27964390 is an apocalyptic number.

27964390 is a deficient number, since it is larger than the sum of its proper divisors (26039930).

27964390 is a wasteful number, since it uses less digits than its factorization.

27964390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2856.

The product of its (nonzero) digits is 81648, while the sum is 40.

The square root of 27964390 is about 5288.1367228921. The cubic root of 27964390 is about 303.5301128943.

The spelling of 27964390 in words is "twenty-seven million, nine hundred sixty-four thousand, three hundred ninety".