64750801 has 4 divisors (see below), whose sum is σ = 64796004. Its totient is φ = 64705600.

The previous prime is 64750783. The next prime is 64750813. The reversal of 64750801 is 10805746.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 36288576 + 28462225 = 6024^2 + 5335^2 .

It is a cyclic number.

It is not a de Polignac number, because 64750801 - 2¹¹ = 64748753 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64750831) 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, 20380 + ... + 23341.

It is an arithmetic number, because the mean of its divisors is an integer number (16199001).

Almost surely, 2^64750801 is an apocalyptic number.

It is an amenable number.

64750801 is a deficient number, since it is larger than the sum of its proper divisors (45203).

64750801 is a wasteful number, since it uses less digits than its factorization.

64750801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45202.

The product of its (nonzero) digits is 6720, while the sum is 31.

The square root of 64750801 is about 8046.7882412799. The cubic root of 64750801 is about 401.5580917451.

The spelling of 64750801 in words is "sixty-four million, seven hundred fifty thousand, eight hundred one".