64713481 has 8 divisors (see below), whose sum is σ = 75957440. Its totient is φ = 53969328.

The previous prime is 64713469. The next prime is 64713499. The reversal of 64713481 is 18431746.

It is a happy number.

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

It is not a de Polignac number, because 64713481 - 2⁷ = 64713353 is a prime.

It is a super-2 number, since 2×64713481² = 8375669246274722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64713401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 124671 + ... + 125188.

It is an arithmetic number, because the mean of its divisors is an integer number (9494680).

Almost surely, 2^64713481 is an apocalyptic number.

It is an amenable number.

64713481 is a deficient number, since it is larger than the sum of its proper divisors (11243959).

64713481 is a wasteful number, since it uses less digits than its factorization.

64713481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249903.

The product of its digits is 16128, while the sum is 34.

The square root of 64713481 is about 8044.4689694224. The cubic root of 64713481 is about 401.4809291060.

The spelling of 64713481 in words is "sixty-four million, seven hundred thirteen thousand, four hundred eighty-one".