27671004 has 48 divisors (see below), whose sum is σ = 72203040. Its totient is φ = 9164160.

The previous prime is 27670991. The next prime is 27671027. The reversal of 27671004 is 40017672.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17944 + ... + 19424.

It is an arithmetic number, because the mean of its divisors is an integer number (1504230).

Almost surely, 2^27671004 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27671004, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36101520).

27671004 is an abundant number, since it is smaller than the sum of its proper divisors (44532036).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

27671004 is a wasteful number, since it uses less digits than its factorization.

27671004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1667 (or 1659 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 27.

The square root of 27671004 is about 5260.3235641926. The cubic root of 27671004 is about 302.4648922214.

Adding to 27671004 its reverse (40017672), we get a palindrome (67688676).

The spelling of 27671004 in words is "twenty-seven million, six hundred seventy-one thousand, four".