864510274 has 4 divisors (see below), whose sum is σ = 1296765414. Its totient is φ = 432255136.

The previous prime is 864510263. The next prime is 864510277. The reversal of 864510274 is 472015468.

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., 549199225 + 315311049 = 23435^2 + 17757^2 .

It is not an unprimeable number, because it can be changed into a prime (864510277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 216127567 + ... + 216127570.

Almost surely, 2^864510274 is an apocalyptic number.

864510274 is a deficient number, since it is larger than the sum of its proper divisors (432255140).

864510274 is a wasteful number, since it uses less digits than its factorization.

864510274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 432255139.

The product of its (nonzero) digits is 53760, while the sum is 37.

The square root of 864510274 is about 29402.5555692018. Note that the first 4 decimals coincide. The cubic root of 864510274 is about 952.6280964759.

The spelling of 864510274 in words is "eight hundred sixty-four million, five hundred ten thousand, two hundred seventy-four".