27480377 has 4 divisors (see below), whose sum is σ = 28675200. Its totient is φ = 26285556.

The previous prime is 27480367. The next prime is 27480389. The reversal of 27480377 is 77308472.

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 not a de Polignac number, because 27480377 - 2⁴ = 27480361 is a prime.

It is a super-2 number, since 2×27480377² = 1510342240124258, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 27480377.

It is not an unprimeable number, because it can be changed into a prime (27480367) 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, 597377 + ... + 597422.

It is an arithmetic number, because the mean of its divisors is an integer number (7168800).

Almost surely, 2^27480377 is an apocalyptic number.

It is an amenable number.

27480377 is a deficient number, since it is larger than the sum of its proper divisors (1194823).

27480377 is a wasteful number, since it uses less digits than its factorization.

27480377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1194822.

The product of its (nonzero) digits is 65856, while the sum is 38.

The square root of 27480377 is about 5242.1729273270. The cubic root of 27480377 is about 301.7687256129.

The spelling of 27480377 in words is "twenty-seven million, four hundred eighty thousand, three hundred seventy-seven".