276993066 has 32 divisors (see below), whose sum is σ = 635506560. Its totient is φ = 78843456.

The previous prime is 276993061. The next prime is 276993107. The reversal of 276993066 is 660399672.

It is a super-2 number, since 2×276993066² = 153450317224160712, which contains 22 as substring.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (276993061) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 961 + ... + 23556.

It is an arithmetic number, because the mean of its divisors is an integer number (19859580).

Almost surely, 2^276993066 is an apocalyptic number.

276993066 is an abundant number, since it is smaller than the sum of its proper divisors (358513494).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

276993066 is a wasteful number, since it uses less digits than its factorization.

276993066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24798.

The product of its (nonzero) digits is 734832, while the sum is 48.

The square root of 276993066 is about 16643.1086639486. The cubic root of 276993066 is about 651.8629521754.

The spelling of 276993066 in words is "two hundred seventy-six million, nine hundred ninety-three thousand, sixty-six".