64040089 has 4 divisors (see below), whose sum is σ = 67410640. Its totient is φ = 60669540.

The previous prime is 64040087. The next prime is 64040107. The reversal of 64040089 is 98004046.

64040089 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 64040089 - 2¹ = 64040087 is a prime.

It is a super-2 number, since 2×64040089² = 8202265998255842, which contains 22 as substring.

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 64040089.

It is not an unprimeable number, because it can be changed into a prime (64040087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1685247 + ... + 1685284.

It is an arithmetic number, because the mean of its divisors is an integer number (16852660).

Almost surely, 2^64040089 is an apocalyptic number.

It is an amenable number.

64040089 is a deficient number, since it is larger than the sum of its proper divisors (3370551).

64040089 is a wasteful number, since it uses less digits than its factorization.

64040089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3370550.

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 64040089 is about 8002.5051702576. The cubic root of 64040089 is about 400.0835013176.

The spelling of 64040089 in words is "sixty-four million, forty thousand, eighty-nine".