64689203 has 8 divisors (see below), whose sum is σ = 66594528. Its totient is φ = 62809344.

The previous prime is 64689151. The next prime is 64689257. The reversal of 64689203 is 30298646.

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 64689203 - 2⁶ = 64689139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64689293) 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, 1151 + ... + 11432.

It is an arithmetic number, because the mean of its divisors is an integer number (8324316).

Almost surely, 2^64689203 is an apocalyptic number.

64689203 is a deficient number, since it is larger than the sum of its proper divisors (1905325).

64689203 is a wasteful number, since it uses less digits than its factorization.

64689203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12733.

The product of its (nonzero) digits is 62208, while the sum is 38.

The square root of 64689203 is about 8042.9598407551. The cubic root of 64689203 is about 401.4307161106.

The spelling of 64689203 in words is "sixty-four million, six hundred eighty-nine thousand, two hundred three".