27470987 has 8 divisors (see below), whose sum is σ = 27812400. Its totient is φ = 27131904.

The previous prime is 27470969. The next prime is 27471019. The reversal of 27470987 is 78907472.

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 27470987 - 2⁸ = 27470731 is a prime.

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

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27470587) 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, 35339 + ... + 36107.

It is an arithmetic number, because the mean of its divisors is an integer number (3476550).

Almost surely, 2^27470987 is an apocalyptic number.

27470987 is a deficient number, since it is larger than the sum of its proper divisors (341413).

27470987 is a wasteful number, since it uses less digits than its factorization.

27470987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1165.

The product of its (nonzero) digits is 197568, while the sum is 44.

The square root of 27470987 is about 5241.2772298363. The cubic root of 27470987 is about 301.7343504035.

The spelling of 27470987 in words is "twenty-seven million, four hundred seventy thousand, nine hundred eighty-seven".