27439970 has 16 divisors (see below), whose sum is σ = 50069880. Its totient is φ = 10825344.

The previous prime is 27439961. The next prime is 27439999. The reversal of 27439970 is 7993472.

It can be written as a sum of positive squares in 4 ways, for example, as 24373969 + 3066001 = 4937^2 + 1751^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18065 + ... + 19524.

Almost surely, 2^27439970 is an apocalyptic number.

27439970 is a deficient number, since it is larger than the sum of its proper divisors (22629910).

27439970 is a wasteful number, since it uses less digits than its factorization.

27439970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37669.

The product of its (nonzero) digits is 95256, while the sum is 41.

The square root of 27439970 is about 5238.3174779694. The cubic root of 27439970 is about 301.6207466843.

The spelling of 27439970 in words is "twenty-seven million, four hundred thirty-nine thousand, nine hundred seventy".