280625073 has 8 divisors (see below), whose sum is σ = 375801600. Its totient is φ = 186265968.

The previous prime is 280625039. The next prime is 280625087. The reversal of 280625073 is 370526082.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 280625073 - 2¹⁷ = 280494001 is a prime.

It is not an unprimeable number, because it can be changed into a prime (280625173) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 203553 + ... + 204926.

It is an arithmetic number, because the mean of its divisors is an integer number (46975200).

Almost surely, 2^280625073 is an apocalyptic number.

It is an amenable number.

280625073 is a deficient number, since it is larger than the sum of its proper divisors (95176527).

280625073 is a wasteful number, since it uses less digits than its factorization.

280625073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 408711.

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 280625073 is about 16751.8677466126. The cubic root of 280625073 is about 654.6997228990.

The spelling of 280625073 in words is "two hundred eighty million, six hundred twenty-five thousand, seventy-three".