27994769 has 8 divisors (see below), whose sum is σ = 30626112. Its totient is φ = 25377840.

The previous prime is 27994741. The next prime is 27994789. The reversal of 27994769 is 96749972.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 27994769 - 2²⁴ = 11217553 is a prime.

It is a super-2 number, since 2×27994769² = 1567414182726722, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 27994769.

It is not an unprimeable number, because it can be changed into a prime (27994709) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 692 + ... + 7514.

It is an arithmetic number, because the mean of its divisors is an integer number (3828264).

Almost surely, 2^27994769 is an apocalyptic number.

It is an amenable number.

27994769 is a deficient number, since it is larger than the sum of its proper divisors (2631343).

27994769 is a wasteful number, since it uses less digits than its factorization.

27994769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7207.

The product of its digits is 1714608, while the sum is 53.

The square root of 27994769 is about 5291.0083160018. The cubic root of 27994769 is about 303.6399860135.

The spelling of 27994769 in words is "twenty-seven million, nine hundred ninety-four thousand, seven hundred sixty-nine".