864952258 has 4 divisors (see below), whose sum is σ = 1297428390. Its totient is φ = 432476128.

The previous prime is 864952241. The next prime is 864952271. The reversal of 864952258 is 852259468.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 506115009 + 358837249 = 22497^2 + 18943^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 216238063 + ... + 216238066.

Almost surely, 2^864952258 is an apocalyptic number.

864952258 is a deficient number, since it is larger than the sum of its proper divisors (432476132).

864952258 is a wasteful number, since it uses less digits than its factorization.

864952258 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 432476131.

The product of its digits is 1382400, while the sum is 49.

The square root of 864952258 is about 29410.0706901565. The cubic root of 864952258 is about 952.7904136689.

The spelling of 864952258 in words is "eight hundred sixty-four million, nine hundred fifty-two thousand, two hundred fifty-eight".