6513970 has 8 divisors (see below), whose sum is σ = 11725164. Its totient is φ = 2605584.

The previous prime is 6513953. The next prime is 6513973. The reversal of 6513970 is 793156.

It can be written as a sum of positive squares in 2 ways, for example, as 6305121 + 208849 = 2511^2 + 457^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (6513973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 325689 + ... + 325708.

Almost surely, 2^6513970 is an apocalyptic number.

6513970 is a deficient number, since it is larger than the sum of its proper divisors (5211194).

6513970 is a wasteful number, since it uses less digits than its factorization.

6513970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 651404.

The product of its (nonzero) digits is 5670, while the sum is 31.

The square root of 6513970 is about 2552.2480286994. The cubic root of 6513970 is about 186.7591626344.

The spelling of 6513970 in words is "six million, five hundred thirteen thousand, nine hundred seventy".