27479799 has 12 divisors (see below), whose sum is σ = 40661712. Its totient is φ = 17872800.

The previous prime is 27479783. The next prime is 27479807. The reversal of 27479799 is 99797472.

It is not a de Polignac number, because 27479799 - 2⁴ = 27479783 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27479759) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 36867 + ... + 37604.

It is an arithmetic number, because the mean of its divisors is an integer number (3388476).

Almost surely, 2^27479799 is an apocalyptic number.

27479799 is a deficient number, since it is larger than the sum of its proper divisors (13181913).

27479799 is a wasteful number, since it uses less digits than its factorization.

27479799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74518 (or 74515 counting only the distinct ones).

The product of its digits is 2000376, while the sum is 54.

The square root of 27479799 is about 5242.1177972266. The cubic root of 27479799 is about 301.7666098783.

The spelling of 27479799 in words is "twenty-seven million, four hundred seventy-nine thousand, seven hundred ninety-nine".