27792649 has 8 divisors (see below), whose sum is σ = 29304000. Its totient is φ = 26286192.

The previous prime is 27792631. The next prime is 27792659. The reversal of 27792649 is 94629772.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 27792649 - 2²³ = 19404041 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 27792599 and 27792608.

It is not an unprimeable number, because it can be changed into a prime (27792619) 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, 20412 + ... + 21730.

It is an arithmetic number, because the mean of its divisors is an integer number (3663000).

Almost surely, 2^27792649 is an apocalyptic number.

It is an amenable number.

27792649 is a deficient number, since it is larger than the sum of its proper divisors (1511351).

27792649 is a wasteful number, since it uses less digits than its factorization.

27792649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2447.

The product of its digits is 381024, while the sum is 46.

The square root of 27792649 is about 5271.8733861883. The cubic root of 27792649 is about 302.9074681051.

It can be divided in two parts, 27792 and 649, that added together give a triangular number (28441 = T₂₃₈).

The spelling of 27792649 in words is "twenty-seven million, seven hundred ninety-two thousand, six hundred forty-nine".