64894611 has 16 divisors (see below), whose sum is σ = 88792704. Its totient is φ = 42135744.

The previous prime is 64894607. The next prime is 64894619. The reversal of 64894611 is 11649846.

It is not a de Polignac number, because 64894611 - 2² = 64894607 is a prime.

It is a super-2 number, since 2×64894611² = 8422621073682642, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 64894611.

It is not an unprimeable number, because it can be changed into a prime (64894619) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 75295 + ... + 76151.

It is an arithmetic number, because the mean of its divisors is an integer number (5549544).

Almost surely, 2^64894611 is an apocalyptic number.

64894611 is a deficient number, since it is larger than the sum of its proper divisors (23898093).

64894611 is a wasteful number, since it uses less digits than its factorization.

64894611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1490.

The product of its digits is 41472, while the sum is 39.

The square root of 64894611 is about 8055.7191485304. The cubic root of 64894611 is about 401.8551556094.

It can be divided in two parts, 648 and 94611, that added together give a palindrome (95259).

The spelling of 64894611 in words is "sixty-four million, eight hundred ninety-four thousand, six hundred eleven".