64707841 has 4 divisors (see below), whose sum is σ = 70590384. Its totient is φ = 58825300.

The previous prime is 64707833. The next prime is 64707871. The reversal of 64707841 is 14870746.

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 64707841 - 2³ = 64707833 is a prime.

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 64707841.

It is not an unprimeable number, because it can be changed into a prime (64707871) 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, 2941255 + ... + 2941276.

It is an arithmetic number, because the mean of its divisors is an integer number (17647596).

Almost surely, 2^64707841 is an apocalyptic number.

It is an amenable number.

64707841 is a deficient number, since it is larger than the sum of its proper divisors (5882543).

64707841 is a wasteful number, since it uses less digits than its factorization.

64707841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5882542.

The product of its (nonzero) digits is 37632, while the sum is 37.

The square root of 64707841 is about 8044.1184103667. The cubic root of 64707841 is about 401.4692652909.

The spelling of 64707841 in words is "sixty-four million, seven hundred seven thousand, eight hundred forty-one".