27999004 has 48 divisors (see below), whose sum is σ = 56689920. Its totient is φ = 11975040.

The previous prime is 27998969. The next prime is 27999029. The reversal of 27999004 is 40099972.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

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, 73687 + ... + 74065.

It is an arithmetic number, because the mean of its divisors is an integer number (1181040).

Almost surely, 2^27999004 is an apocalyptic number.

It is an amenable number.

27999004 is an abundant number, since it is smaller than the sum of its proper divisors (28690916).

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

27999004 is a wasteful number, since it uses less digits than its factorization.

27999004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 490 (or 488 counting only the distinct ones).

The product of its (nonzero) digits is 40824, while the sum is 40.

The square root of 27999004 is about 5291.4085081385. The cubic root of 27999004 is about 303.6552966179.

The spelling of 27999004 in words is "twenty-seven million, nine hundred ninety-nine thousand, four".