27490079 has 4 divisors (see below), whose sum is σ = 27762360. Its totient is φ = 27217800.

The previous prime is 27490063. The next prime is 27490109. The reversal of 27490079 is 97009472.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 27490079 - 2⁴ = 27490063 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27490279) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 135989 + ... + 136190.

It is an arithmetic number, because the mean of its divisors is an integer number (6940590).

Almost surely, 2^27490079 is an apocalyptic number.

27490079 is a deficient number, since it is larger than the sum of its proper divisors (272281).

27490079 is a wasteful number, since it uses less digits than its factorization.

27490079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272280.

The product of its (nonzero) digits is 31752, while the sum is 38.

The square root of 27490079 is about 5243.0982252863. The cubic root of 27490079 is about 301.8042347775.

The spelling of 27490079 in words is "twenty-seven million, four hundred ninety thousand, seventy-nine".