27984154 has 12 divisors (see below), whose sum is σ = 46139562. Its totient is φ = 12719960.

The previous prime is 27984127. The next prime is 27984157. The reversal of 27984154 is 45148972.

It can be written as a sum of positive squares in only one way, i.e., 20839225 + 7144929 = 4565^2 + 2673^2 .

It is a super-2 number, since 2×27984154² = 1566225750191432, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (27984157) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 57577 + ... + 58060.

Almost surely, 2^27984154 is an apocalyptic number.

27984154 is a deficient number, since it is larger than the sum of its proper divisors (18155408).

27984154 is a wasteful number, since it uses less digits than its factorization.

27984154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115661 (or 115650 counting only the distinct ones).

The product of its digits is 80640, while the sum is 40.

The square root of 27984154 is about 5290.0051039673. The cubic root of 27984154 is about 303.6016032962.

The spelling of 27984154 in words is "twenty-seven million, nine hundred eighty-four thousand, one hundred fifty-four".