27920834 has 16 divisors (see below), whose sum is σ = 44446968. Its totient is φ = 13108992.

The previous prime is 27920833. The next prime is 27920857. The reversal of 27920834 is 43802972.

It can be written as a sum of positive squares in 4 ways, for example, as 27008809 + 912025 = 5197^2 + 955^2 .

It is a junction number, because it is equal to n+sod(n) for n = 27920794 and 27920803.

It is not an unprimeable number, because it can be changed into a prime (27920833) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22412 + ... + 23624.

Almost surely, 2^27920834 is an apocalyptic number.

27920834 is a deficient number, since it is larger than the sum of its proper divisors (16526134).

27920834 is a wasteful number, since it uses less digits than its factorization.

27920834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1909.

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 27920834 is about 5284.0168432737. The cubic root of 27920834 is about 303.3724429976.

The spelling of 27920834 in words is "twenty-seven million, nine hundred twenty thousand, eight hundred thirty-four".