27490901 has 4 divisors (see below), whose sum is σ = 27518400. Its totient is φ = 27463404.

The previous prime is 27490877. The next prime is 27490907. The reversal of 27490901 is 10909472.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27490901 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27490907) 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, 12191 + ... + 14268.

It is an arithmetic number, because the mean of its divisors is an integer number (6879600).

Almost surely, 2^27490901 is an apocalyptic number.

It is an amenable number.

27490901 is a deficient number, since it is larger than the sum of its proper divisors (27499).

27490901 is a wasteful number, since it uses less digits than its factorization.

27490901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27498.

The product of its (nonzero) digits is 4536, while the sum is 32.

The square root of 27490901 is about 5243.1766134663. The cubic root of 27490901 is about 301.8072429004.

The spelling of 27490901 in words is "twenty-seven million, four hundred ninety thousand, nine hundred one".