280677047 has 6 divisors (see below), whose sum is σ = 326501928. Its totient is φ = 240580284.

The previous prime is 280677041. The next prime is 280677049. The reversal of 280677047 is 740776082.

It is not a de Polignac number, because 280677047 - 2⁸ = 280676791 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 280676995 and 280677013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (280677041) 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, 2864003 + ... + 2864100.

It is an arithmetic number, because the mean of its divisors is an integer number (54416988).

Almost surely, 2^280677047 is an apocalyptic number.

280677047 is a deficient number, since it is larger than the sum of its proper divisors (45824881).

280677047 is an equidigital number, since it uses as much as digits as its factorization.

280677047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5728117 (or 5728110 counting only the distinct ones).

The product of its (nonzero) digits is 131712, while the sum is 41.

The square root of 280677047 is about 16753.4189644980. The cubic root of 280677047 is about 654.7401389394.

The spelling of 280677047 in words is "two hundred eighty million, six hundred seventy-seven thousand, forty-seven".