6464272 has 10 divisors (see below), whose sum is σ = 12524558. Its totient is φ = 3232128.

The previous prime is 6464261. The next prime is 6464273. The reversal of 6464272 is 2724646.

It can be written as a sum of positive squares in only one way, i.e., 6230016 + 234256 = 2496^2 + 484^2 .

It is not an unprimeable number, because it can be changed into a prime (6464273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201993 + ... + 202024.

Almost surely, 2^6464272 is an apocalyptic number.

It is an amenable number.

6464272 is a deficient number, since it is larger than the sum of its proper divisors (6060286).

6464272 is a wasteful number, since it uses less digits than its factorization.

6464272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 404025 (or 404019 counting only the distinct ones).

The product of its digits is 16128, while the sum is 31.

The square root of 6464272 is about 2542.4932644945. The cubic root of 6464272 is about 186.2829931191.

The spelling of 6464272 in words is "six million, four hundred sixty-four thousand, two hundred seventy-two".