259370987 has 4 divisors (see below), whose sum is σ = 259403616. Its totient is φ = 259338360.

The previous prime is 259370981. The next prime is 259371001. The reversal of 259370987 is 789073952.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 259370987 - 2⁸ = 259370731 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (259370981) 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, 4253 + ... + 23169.

It is an arithmetic number, because the mean of its divisors is an integer number (64850904).

Almost surely, 2^259370987 is an apocalyptic number.

259370987 is a deficient number, since it is larger than the sum of its proper divisors (32629).

259370987 is a wasteful number, since it uses less digits than its factorization.

259370987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32628.

The product of its (nonzero) digits is 952560, while the sum is 50.

The square root of 259370987 is about 16104.9988202421. The cubic root of 259370987 is about 637.7353119271.

The spelling of 259370987 in words is "two hundred fifty-nine million, three hundred seventy thousand, nine hundred eighty-seven".