6464473 has 4 divisors (see below), whose sum is σ = 6511120. Its totient is φ = 6417828.

The previous prime is 6464431. The next prime is 6464483. The reversal of 6464473 is 3744646.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3744646 = 2 ⋅1872323.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6464473 is a prime.

It is a super-2 number, since 2×6464473² = 83578822335458, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6464413) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23115 + ... + 23392.

It is an arithmetic number, because the mean of its divisors is an integer number (1627780).

Almost surely, 2^6464473 is an apocalyptic number.

It is an amenable number.

6464473 is a deficient number, since it is larger than the sum of its proper divisors (46647).

6464473 is a wasteful number, since it uses less digits than its factorization.

6464473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46646.

The product of its digits is 48384, while the sum is 34.

The square root of 6464473 is about 2542.5327923156. The cubic root of 6464473 is about 186.2849238595.

Subtracting from 6464473 its product of digits (48384), we obtain a square (6416089 = 2533²).

The spelling of 6464473 in words is "six million, four hundred sixty-four thousand, four hundred seventy-three".