27472949 has 8 divisors (see below), whose sum is σ = 31500480. Its totient is φ = 23471136.

The previous prime is 27472943. The next prime is 27472979. The reversal of 27472949 is 94927472.

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 27472949 - 2²⁰ = 26424373 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27472943) 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, 4079 + ... + 8460.

It is an arithmetic number, because the mean of its divisors is an integer number (3937560).

Almost surely, 2^27472949 is an apocalyptic number.

It is an amenable number.

27472949 is a deficient number, since it is larger than the sum of its proper divisors (4027531).

27472949 is a wasteful number, since it uses less digits than its factorization.

27472949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12859.

The product of its digits is 254016, while the sum is 44.

The square root of 27472949 is about 5241.4643946134. The cubic root of 27472949 is about 301.7415336025.

The spelling of 27472949 in words is "twenty-seven million, four hundred seventy-two thousand, nine hundred forty-nine".