276290947 has 2 divisors, whose sum is σ = 276290948. Its totient is φ = 276290946.

The previous prime is 276290939. The next prime is 276290969. The reversal of 276290947 is 749092672.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 276290947 - 2³ = 276290939 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 276290897 and 276290906.

It is not a weakly prime, because it can be changed into another prime (276290347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 138145473 + 138145474.

It is an arithmetic number, because the mean of its divisors is an integer number (138145474).

Almost surely, 2^276290947 is an apocalyptic number.

276290947 is a deficient number, since it is larger than the sum of its proper divisors (1).

276290947 is an equidigital number, since it uses as much as digits as its factorization.

276290947 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 381024, while the sum is 46.

The square root of 276290947 is about 16622.0018950787. The cubic root of 276290947 is about 651.3117077849.

The spelling of 276290947 in words is "two hundred seventy-six million, two hundred ninety thousand, nine hundred forty-seven".