64930399 has 8 divisors (see below), whose sum is σ = 67327488. Its totient is φ = 62552280.

The previous prime is 64930381. The next prime is 64930417. The reversal of 64930399 is 99303946.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (64930381) and next prime (64930417).

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 64930399 - 2¹⁷ = 64799327 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 (64930309) 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 7 ways as a sum of consecutive naturals, for example, 2424 + ... + 11650.

It is an arithmetic number, because the mean of its divisors is an integer number (8415936).

Almost surely, 2^64930399 is an apocalyptic number.

64930399 is a deficient number, since it is larger than the sum of its proper divisors (2397089).

64930399 is a wasteful number, since it uses less digits than its factorization.

64930399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9485.

The product of its (nonzero) digits is 157464, while the sum is 43.

The square root of 64930399 is about 8057.9401213958. The cubic root of 64930399 is about 401.9290135624.

The spelling of 64930399 in words is "sixty-four million, nine hundred thirty thousand, three hundred ninety-nine".