64089716 has 6 divisors (see below), whose sum is σ = 112157010. Its totient is φ = 32044856.

The previous prime is 64089713. The next prime is 64089719. The reversal of 64089716 is 61798046.

It is an interprime number because it is at equal distance from previous prime (64089713) and next prime (64089719).

It can be written as a sum of positive squares in only one way, i.e., 41088100 + 23001616 = 6410^2 + 4796^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64089713) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8011211 + ... + 8011218.

It is an arithmetic number, because the mean of its divisors is an integer number (18692835).

Almost surely, 2^64089716 is an apocalyptic number.

It is an amenable number.

64089716 is a deficient number, since it is larger than the sum of its proper divisors (48067294).

64089716 is a wasteful number, since it uses less digits than its factorization.

64089716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16022433 (or 16022431 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 41.

The square root of 64089716 is about 8005.6052862978. The cubic root of 64089716 is about 400.1868210645.

The spelling of 64089716 in words is "sixty-four million, eighty-nine thousand, seven hundred sixteen".