27900004 has 12 divisors (see below), whose sum is σ = 53263728. Its totient is φ = 12681800.

The previous prime is 27899959. The next prime is 27900011. The reversal of 27900004 is 40000972.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 317002 + ... + 317089.

It is an arithmetic number, because the mean of its divisors is an integer number (4438644).

Almost surely, 2^27900004 is an apocalyptic number.

It is an amenable number.

27900004 is a deficient number, since it is larger than the sum of its proper divisors (25363724).

27900004 is a wasteful number, since it uses less digits than its factorization.

27900004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 634106 (or 634104 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 22.

The square root of 27900004 is about 5282.0454371389. The cubic root of 27900004 is about 303.2969817834.

Adding to 27900004 its reverse (40000972), we get a palindrome (67900976).

The spelling of 27900004 in words is "twenty-seven million, nine hundred thousand, four".