27730797 has 8 divisors (see below), whose sum is σ = 37973856. Its totient is φ = 17987472.

The previous prime is 27730777. The next prime is 27730811. The reversal of 27730797 is 79703772.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 27730797 - 2⁶ = 27730733 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27730727) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 124803 + ... + 125024.

It is an arithmetic number, because the mean of its divisors is an integer number (4746732).

Almost surely, 2^27730797 is an apocalyptic number.

It is an amenable number.

27730797 is a deficient number, since it is larger than the sum of its proper divisors (10243059).

27730797 is a wasteful number, since it uses less digits than its factorization.

27730797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249867.

The product of its (nonzero) digits is 129654, while the sum is 42.

The square root of 27730797 is about 5266.0038928964. The cubic root of 27730797 is about 302.6825963129.

The spelling of 27730797 in words is "twenty-seven million, seven hundred thirty thousand, seven hundred ninety-seven".