280264783 has 2 divisors, whose sum is σ = 280264784. Its totient is φ = 280264782.

The previous prime is 280264781. The next prime is 280264823. The reversal of 280264783 is 387462082.

It is an a-pointer prime, because the next prime (280264823) can be obtained adding 280264783 to its sum of digits (40).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 280264783 - 2¹ = 280264781 is a prime.

Together with 280264781, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (280264781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 140132391 + 140132392.

It is an arithmetic number, because the mean of its divisors is an integer number (140132392).

Almost surely, 2^280264783 is an apocalyptic number.

280264783 is the 8949-th centered heptagonal number.

280264783 is a deficient number, since it is larger than the sum of its proper divisors (1).

280264783 is an equidigital number, since it uses as much as digits as its factorization.

280264783 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 129024, while the sum is 40.

The square root of 280264783 is about 16741.1105665066. The cubic root of 280264783 is about 654.4194167703.

The spelling of 280264783 in words is "two hundred eighty million, two hundred sixty-four thousand, seven hundred eighty-three".