27939492 has 120 divisors (see below), whose sum is σ = 84998144. Its totient is φ = 7838208.

The previous prime is 27939487. The next prime is 27939497. The reversal of 27939492 is 29493972.

It is an interprime number because it is at equal distance from previous prime (27939487) and next prime (27939497).

It is a super-4 number, since 4×27939492⁴ (a number of 31 digits) contains 4444 as substring.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (27939497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 219933 + ... + 220059.

Almost surely, 2^27939492 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27939492, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42499072).

27939492 is an abundant number, since it is smaller than the sum of its proper divisors (57058652).

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

27939492 is a wasteful number, since it uses less digits than its factorization.

27939492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247 (or 236 counting only the distinct ones).

The product of its digits is 244944, while the sum is 45.

The square root of 27939492 is about 5285.7820613415. The cubic root of 27939492 is about 303.4400038100.

The spelling of 27939492 in words is "twenty-seven million, nine hundred thirty-nine thousand, four hundred ninety-two".