64369789 has 8 divisors (see below), whose sum is σ = 70304832. Its totient is φ = 58448640.

The previous prime is 64369783. The next prime is 64369793. The reversal of 64369789 is 98796346.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 64369789 - 2⁵ = 64369757 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64369783) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7837 + ... + 13789.

It is an arithmetic number, because the mean of its divisors is an integer number (8788104).

Almost surely, 2^64369789 is an apocalyptic number.

It is an amenable number.

64369789 is a deficient number, since it is larger than the sum of its proper divisors (5935043).

64369789 is a wasteful number, since it uses less digits than its factorization.

64369789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6947.

The product of its digits is 1959552, while the sum is 52.

The square root of 64369789 is about 8023.0785238585. The cubic root of 64369789 is about 400.7689147283.

The spelling of 64369789 in words is "sixty-four million, three hundred sixty-nine thousand, seven hundred eighty-nine".