6464169 has 6 divisors (see below), whose sum is σ = 9337146. Its totient is φ = 4309440.

The previous prime is 6464167. The next prime is 6464179. The reversal of 6464169 is 9614646.

6464169 is a `hidden beast` number, since 6 + 4 + 641 + 6 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 4995225 + 1468944 = 2235^2 + 1212^2 .

It is not a de Polignac number, because 6464169 - 2¹ = 6464167 is a prime.

It is a super-2 number, since 2×6464169² = 83570961721122, which contains 22 as substring.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (6464167) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 359112 + ... + 359129.

It is an arithmetic number, because the mean of its divisors is an integer number (1556191).

Almost surely, 2^6464169 is an apocalyptic number.

It is an amenable number.

6464169 is a deficient number, since it is larger than the sum of its proper divisors (2872977).

6464169 is a wasteful number, since it uses less digits than its factorization.

6464169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 718247 (or 718244 counting only the distinct ones).

The product of its digits is 31104, while the sum is 36.

The square root of 6464169 is about 2542.4730087063. The cubic root of 6464169 is about 186.2820037192.

It can be divided in two parts, 646416 and 9, that multiplied together give a square (5817744 = 2412²).

The spelling of 6464169 in words is "six million, four hundred sixty-four thousand, one hundred sixty-nine".