6464731 has 16 divisors (see below), whose sum is σ = 8377600. Its totient is φ = 4844448.

The previous prime is 6464729. The next prime is 6464741. The reversal of 6464731 is 1374646.

It is not a de Polignac number, because 6464731 - 2¹ = 6464729 is a prime.

It is a super-2 number, since 2×6464731² = 83585493804722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 6464693 and 6464702.

It is not an unprimeable number, because it can be changed into a prime (6464741) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 141 + ... + 3598.

It is an arithmetic number, because the mean of its divisors is an integer number (523600).

Almost surely, 2^6464731 is an apocalyptic number.

6464731 is a deficient number, since it is larger than the sum of its proper divisors (1912869).

6464731 is a wasteful number, since it uses less digits than its factorization.

6464731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3778.

The product of its digits is 12096, while the sum is 31.

The square root of 6464731 is about 2542.5835286181. The cubic root of 6464731 is about 186.2874020647.

The spelling of 6464731 in words is "six million, four hundred sixty-four thousand, seven hundred thirty-one".