6468634 has 4 divisors (see below), whose sum is σ = 9702954. Its totient is φ = 3234316.

The previous prime is 6468629. The next prime is 6468641. The reversal of 6468634 is 4368646.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4368646 = 2 ⋅2184323.

It can be written as a sum of positive squares in only one way, i.e., 3988009 + 2480625 = 1997^2 + 1575^2 .

It is a junction number, because it is equal to n+sod(n) for n = 6468593 and 6468602.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1617157 + ... + 1617160.

Almost surely, 2^6468634 is an apocalyptic number.

6468634 is a deficient number, since it is larger than the sum of its proper divisors (3234320).

6468634 is a wasteful number, since it uses less digits than its factorization.

6468634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3234319.

The product of its digits is 82944, while the sum is 37.

The square root of 6468634 is about 2543.3509392139. The cubic root of 6468634 is about 186.3248840810.

The spelling of 6468634 in words is "six million, four hundred sixty-eight thousand, six hundred thirty-four".