64854760 has 16 divisors (see below), whose sum is σ = 145923300. Its totient is φ = 25941888.

The previous prime is 64854731. The next prime is 64854761. The reversal of 64854760 is 6745846.

It can be written as a sum of positive squares in 2 ways, for example, as 56340036 + 8514724 = 7506^2 + 2918^2 .

It is a super-3 number, since 3×64854760³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (40), and also a Moran number because the ratio is a prime number: 1621369 = 64854760 / (6 + 4 + 8 + 5 + 4 + 7 + 6 + 0).

It is not an unprimeable number, because it can be changed into a prime (64854761) 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, 810645 + ... + 810724.

Almost surely, 2^64854760 is an apocalyptic number.

It is an amenable number.

64854760 is an abundant number, since it is smaller than the sum of its proper divisors (81068540).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64854760 is a wasteful number, since it uses less digits than its factorization.

64854760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1621380 (or 1621376 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 40.

The square root of 64854760 is about 8053.2453085697. The cubic root of 64854760 is about 401.7728806266.

The spelling of 64854760 in words is "sixty-four million, eight hundred fifty-four thousand, seven hundred sixty".