6464971 has 2 divisors, whose sum is σ = 6464972. Its totient is φ = 6464970.

The previous prime is 6464951. The next prime is 6464977. The reversal of 6464971 is 1794646.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6464971 - 2²¹ = 4367819 is a prime.

It is a d-powerful number, because it can be written as 6⁴ + 4² + 6⁸ + 4⁵ + 9⁷ + 7² + 1 .

It is a self number, because there is not a number n which added to its sum of digits gives 6464971.

It is not a weakly prime, because it can be changed into another prime (6464977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3232485 + 3232486.

It is an arithmetic number, because the mean of its divisors is an integer number (3232486).

Almost surely, 2^6464971 is an apocalyptic number.

6464971 is a deficient number, since it is larger than the sum of its proper divisors (1).

6464971 is an equidigital number, since it uses as much as digits as its factorization.

6464971 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36288, while the sum is 37.

The square root of 6464971 is about 2542.6307242696. The cubic root of 6464971 is about 186.2897073126.

The spelling of 6464971 in words is "six million, four hundred sixty-four thousand, nine hundred seventy-one".