27872049 has 4 divisors (see below), whose sum is σ = 37162736. Its totient is φ = 18581364.

The previous prime is 27872029. The next prime is 27872051. The reversal of 27872049 is 94027872.

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 not a de Polignac number, because 27872049 - 2¹² = 27867953 is a prime.

It is a super-2 number, since 2×27872049² = 1553702230916802, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 27871998 and 27872016.

It is not an unprimeable number, because it can be changed into a prime (27872029) 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, 4645339 + ... + 4645344.

It is an arithmetic number, because the mean of its divisors is an integer number (9290684).

Almost surely, 2^27872049 is an apocalyptic number.

It is an amenable number.

27872049 is a deficient number, since it is larger than the sum of its proper divisors (9290687).

27872049 is an equidigital number, since it uses as much as digits as its factorization.

27872049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9290686.

The product of its (nonzero) digits is 56448, while the sum is 39.

The square root of 27872049 is about 5279.3985452890. The cubic root of 27872049 is about 303.1956496534.

It can be divided in two parts, 278 and 72049, that added together give a palindrome (72327).

The spelling of 27872049 in words is "twenty-seven million, eight hundred seventy-two thousand, forty-nine".