258272787 has 4 divisors (see below), whose sum is σ = 344363720. Its totient is φ = 172181856.

The previous prime is 258272779. The next prime is 258272797. The reversal of 258272787 is 787272852.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 258272787 - 2³ = 258272779 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (258272767) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43045462 + ... + 43045467.

It is an arithmetic number, because the mean of its divisors is an integer number (86090930).

Almost surely, 2^258272787 is an apocalyptic number.

258272787 is a deficient number, since it is larger than the sum of its proper divisors (86090933).

258272787 is an equidigital number, since it uses as much as digits as its factorization.

258272787 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86090932.

The product of its digits is 878080, while the sum is 48.

The square root of 258272787 is about 16070.8676492590. The cubic root of 258272787 is about 636.8339624443.

The spelling of 258272787 in words is "two hundred fifty-eight million, two hundred seventy-two thousand, seven hundred eighty-seven".