64860481 has 4 divisors (see below), whose sum is σ = 74126272. Its totient is φ = 55594692.

The previous prime is 64860479. The next prime is 64860527. The reversal of 64860481 is 18406846.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 64860481 - 2¹ = 64860479 is a prime.

It is a super-2 number, since 2×64860481² = 8413763991102722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 64860481.

It is not an unprimeable number, because it can be changed into a prime (64860421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4632885 + ... + 4632898.

It is an arithmetic number, because the mean of its divisors is an integer number (18531568).

Almost surely, 2^64860481 is an apocalyptic number.

It is an amenable number.

64860481 is a deficient number, since it is larger than the sum of its proper divisors (9265791).

64860481 is an equidigital number, since it uses as much as digits as its factorization.

64860481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9265790.

The product of its (nonzero) digits is 36864, while the sum is 37.

The square root of 64860481 is about 8053.6004991556. The cubic root of 64860481 is about 401.7846940750.

It can be divided in two parts, 64860 and 481, that added together give a triangular number (65341 = T₃₆₁).

The spelling of 64860481 in words is "sixty-four million, eight hundred sixty thousand, four hundred eighty-one".