64894411 has 4 divisors (see below), whose sum is σ = 66648352. Its totient is φ = 63140472.

The previous prime is 64894409. The next prime is 64894469. The reversal of 64894411 is 11449846.

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

It is a cyclic number.

It is not a de Polignac number, because 64894411 - 2¹ = 64894409 is a prime.

It is a super-2 number, since 2×64894411² = 8422569158073842, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (37), and also a Moran number because the ratio is a prime number: 1753903 = 64894411 / (6 + 4 + 8 + 9 + 4 + 4 + 1 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64897411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 876915 + ... + 876988.

It is an arithmetic number, because the mean of its divisors is an integer number (16662088).

Almost surely, 2^64894411 is an apocalyptic number.

64894411 is a deficient number, since it is larger than the sum of its proper divisors (1753941).

64894411 is a wasteful number, since it uses less digits than its factorization.

64894411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1753940.

The product of its digits is 27648, while the sum is 37.

The square root of 64894411 is about 8055.7067349799. The cubic root of 64894411 is about 401.8547427804.

It can be divided in two parts, 648 and 94411, that added together give a palindrome (95059).

The spelling of 64894411 in words is "sixty-four million, eight hundred ninety-four thousand, four hundred eleven".