280074923 has 2 divisors, whose sum is σ = 280074924. Its totient is φ = 280074922.

The previous prime is 280074911. The next prime is 280074937. The reversal of 280074923 is 329470082.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 280074923 - 2²⁰ = 279026347 is a prime.

It is not a weakly prime, because it can be changed into another prime (280074023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 140037461 + 140037462.

It is an arithmetic number, because the mean of its divisors is an integer number (140037462).

Almost surely, 2^280074923 is an apocalyptic number.

280074923 is a deficient number, since it is larger than the sum of its proper divisors (1).

280074923 is an equidigital number, since it uses as much as digits as its factorization.

280074923 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 280074923 is about 16735.4391337664. The cubic root of 280074923 is about 654.2716087627.

The spelling of 280074923 in words is "two hundred eighty million, seventy-four thousand, nine hundred twenty-three".