64870481 has 12 divisors (see below), whose sum is σ = 71747712. Its totient is φ = 58599216.

The previous prime is 64870469. The next prime is 64870489. The reversal of 64870481 is 18407846.

It is not a de Polignac number, because 64870481 - 2⁶ = 64870417 is a prime.

It is a super-2 number, since 2×64870481² = 8416358610342722, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 14.

It is a zygodrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (64870489) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3860 + ... + 12026.

It is an arithmetic number, because the mean of its divisors is an integer number (5978976).

Almost surely, 2^64870481 is an apocalyptic number.

It is an amenable number.

64870481 is a deficient number, since it is larger than the sum of its proper divisors (6877231).

64870481 is a wasteful number, since it uses less digits than its factorization.

64870481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8240 (or 8227 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 38.

The square root of 64870481 is about 8054.2213155587. The cubic root of 64870481 is about 401.8053416784.

The spelling of 64870481 in words is "sixty-four million, eight hundred seventy thousand, four hundred eighty-one".