6464737 has 4 divisors (see below), whose sum is σ = 6503616. Its totient is φ = 6425860.

The previous prime is 6464729. The next prime is 6464741. The reversal of 6464737 is 7374646.

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.

It is a cyclic number.

It is not a de Polignac number, because 6464737 - 2³ = 6464729 is a prime.

It is a d-powerful number, because it can be written as 6 + 4⁵ + 6⁸ + 4⁵ + 7² + 3¹⁴ + 7² .

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6464696 and 6464705.

It is not an unprimeable number, because it can be changed into a prime (6464747) 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, 19189 + ... + 19522.

It is an arithmetic number, because the mean of its divisors is an integer number (1625904).

Almost surely, 2^6464737 is an apocalyptic number.

It is an amenable number.

6464737 is a deficient number, since it is larger than the sum of its proper divisors (38879).

6464737 is a wasteful number, since it uses less digits than its factorization.

6464737 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38878.

The product of its digits is 84672, while the sum is 37.

The square root of 6464737 is about 2542.5847085201. The cubic root of 6464737 is about 186.2874596966.

Subtracting 6464737 from its reverse (7374646), we obtain a palindrome (909909).

The spelling of 6464737 in words is "six million, four hundred sixty-four thousand, seven hundred thirty-seven".