276603966 has 12 divisors (see below), whose sum is σ = 599308632. Its totient is φ = 92201316.

The previous prime is 276603961. The next prime is 276603973. The reversal of 276603966 is 669306672.

276603966 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (276603961) 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, 7683426 + ... + 7683461.

It is an arithmetic number, because the mean of its divisors is an integer number (49942386).

Almost surely, 2^276603966 is an apocalyptic number.

276603966 is an abundant number, since it is smaller than the sum of its proper divisors (322704666).

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

276603966 is a wasteful number, since it uses less digits than its factorization.

276603966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15366895 (or 15366892 counting only the distinct ones).

The product of its (nonzero) digits is 489888, while the sum is 45.

The square root of 276603966 is about 16631.4150330031. The cubic root of 276603966 is about 651.5575790288.

It can be divided in two parts, 27660 and 3966, that added together give a triangular number (31626 = T₂₅₁).

The spelling of 276603966 in words is "two hundred seventy-six million, six hundred three thousand, nine hundred sixty-six".