27904970 has 8 divisors (see below), whose sum is σ = 50228964. Its totient is φ = 11161984.

The previous prime is 27904967. The next prime is 27905021. The reversal of 27904970 is 7940972.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 23980609 + 3924361 = 4897^2 + 1981^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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, 1395239 + ... + 1395258.

Almost surely, 2^27904970 is an apocalyptic number.

27904970 is a deficient number, since it is larger than the sum of its proper divisors (22323994).

27904970 is a wasteful number, since it uses less digits than its factorization.

27904970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2790504.

The product of its (nonzero) digits is 31752, while the sum is 38.

The square root of 27904970 is about 5282.5154992674. The cubic root of 27904970 is about 303.3149756095.

The spelling of 27904970 in words is "twenty-seven million, nine hundred four thousand, nine hundred seventy".