64970 has 16 divisors (see below), whose sum is σ = 119880. Its totient is φ = 25344.

The previous prime is 64969. The next prime is 64997. The reversal of 64970 is 7946.

64970 = 68² + 69² + ... + 79².

It can be written as a sum of positive squares in 4 ways, for example, as 44521 + 20449 = 211^2 + 143^2 .

It is a super-2 number, since 2×64970² = 8442201800, which contains 22 as substring.

It is a nialpdrome in base 16.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 686 + ... + 774.

2⁶⁴⁹⁷⁰ is an apocalyptic number.

64970 is a deficient number, since it is larger than the sum of its proper divisors (54910).

64970 is a wasteful number, since it uses less digits than its factorization.

64970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169.

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 64970 is about 254.8921340489. The cubic root of 64970 is about 40.2010709021.

The spelling of 64970 in words is "sixty-four thousand, nine hundred seventy".