64570041 has 10 divisors (see below), whose sum is σ = 96456602. Its totient is φ = 43046640.

The previous prime is 64570021. The next prime is 64570043. The reversal of 64570041 is 14007546.

It can be written as a sum of positive squares in only one way, i.e., 46294416 + 18275625 = 6804^2 + 4275^2 .

It is not a de Polignac number, because 64570041 - 2¹⁰ = 64569017 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a Curzon number.

It is a nialpdrome in base 3.

It is a zygodrome in base 3.

It is a junction number, because it is equal to n+sod(n) for n = 64569987 and 64570014.

It is not an unprimeable number, because it can be changed into a prime (64570043) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 398500 + ... + 398661.

Almost surely, 2^64570041 is an apocalyptic number.

It is an amenable number.

64570041 is a deficient number, since it is larger than the sum of its proper divisors (31886561).

64570041 is an equidigital number, since it uses as much as digits as its factorization.

64570041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 797173 (or 797164 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 64570041 is about 8035.5485811486. The cubic root of 64570041 is about 401.1840768630.

Adding to 64570041 its reverse (14007546), we get a palindrome (78577587).

The spelling of 64570041 in words is "sixty-four million, five hundred seventy thousand, forty-one".