27957802 has 4 divisors (see below), whose sum is σ = 41936706. Its totient is φ = 13978900.

The previous prime is 27957791. The next prime is 27957821. The reversal of 27957802 is 20875972.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 27363361 + 594441 = 5231^2 + 771^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6989449 + ... + 6989452.

Almost surely, 2^27957802 is an apocalyptic number.

27957802 is a deficient number, since it is larger than the sum of its proper divisors (13978904).

27957802 is a wasteful number, since it uses less digits than its factorization.

27957802 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13978903.

The product of its (nonzero) digits is 70560, while the sum is 40.

The square root of 27957802 is about 5287.5137824879. The cubic root of 27957802 is about 303.5062752752.

It can be divided in two parts, 279 and 57802, that added together give a square (58081 = 241²).

The spelling of 27957802 in words is "twenty-seven million, nine hundred fifty-seven thousand, eight hundred two".