27496990 has 32 divisors (see below), whose sum is σ = 55170720. Its totient is φ = 9805824.

The previous prime is 27496981. The next prime is 27496991. The reversal of 27496990 is 9969472.

It is a self number, because there is not a number n which added to its sum of digits gives 27496990.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27496991) 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, 1027 + ... + 7486.

It is an arithmetic number, because the mean of its divisors is an integer number (1724085).

Almost surely, 2^27496990 is an apocalyptic number.

27496990 is an abundant number, since it is smaller than the sum of its proper divisors (27673730).

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

27496990 is a wasteful number, since it uses less digits than its factorization.

27496990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8556.

The product of its (nonzero) digits is 244944, while the sum is 46.

The square root of 27496990 is about 5243.7572407578. The cubic root of 27496990 is about 301.8295238318.

The spelling of 27496990 in words is "twenty-seven million, four hundred ninety-six thousand, nine hundred ninety".