865438034 has 4 divisors (see below), whose sum is σ = 1298157054. Its totient is φ = 432719016.

The previous prime is 865438031. The next prime is 865438037. The reversal of 865438034 is 430834568.

It is a happy number.

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

It is an interprime number because it is at equal distance from previous prime (865438031) and next prime (865438037).

It can be written as a sum of positive squares in only one way, i.e., 503867809 + 361570225 = 22447^2 + 19015^2 .

It is a junction number, because it is equal to n+sod(n) for n = 865437982 and 865438000.

It is not an unprimeable number, because it can be changed into a prime (865438031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 216359507 + ... + 216359510.

Almost surely, 2^865438034 is an apocalyptic number.

865438034 is a deficient number, since it is larger than the sum of its proper divisors (432719020).

865438034 is a wasteful number, since it uses less digits than its factorization.

865438034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 432719019.

The product of its (nonzero) digits is 276480, while the sum is 41.

The square root of 865438034 is about 29418.3281985908. The cubic root of 865438034 is about 952.9687495602.

The spelling of 865438034 in words is "eight hundred sixty-five million, four hundred thirty-eight thousand, thirty-four".