27697037 has 4 divisors (see below), whose sum is σ = 28901280. Its totient is φ = 26492796.

The previous prime is 27696983. The next prime is 27697051. The reversal of 27697037 is 73079672.

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 27697037 - 2¹⁸ = 27434893 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 27696985 and 27697003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27693037) 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, 602087 + ... + 602132.

It is an arithmetic number, because the mean of its divisors is an integer number (7225320).

Almost surely, 2^27697037 is an apocalyptic number.

It is an amenable number.

27697037 is a deficient number, since it is larger than the sum of its proper divisors (1204243).

27697037 is a wasteful number, since it uses less digits than its factorization.

27697037 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1204242.

The product of its (nonzero) digits is 111132, while the sum is 41.

The square root of 27697037 is about 5262.7974500260. The cubic root of 27697037 is about 302.5597159161.

The spelling of 27697037 in words is "twenty-seven million, six hundred ninety-seven thousand, thirty-seven".