64303405 has 8 divisors (see below), whose sum is σ = 77259672. Its totient is φ = 51379008.

The previous prime is 64303387. The next prime is 64303417. The reversal of 64303405 is 50430346.

It can be written as a sum of positive squares in 4 ways, for example, as 4116841 + 60186564 = 2029^2 + 7758^2 .

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 64303405 - 2⁹ = 64302893 is a prime.

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 64303405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3274 + ... + 11803.

It is an arithmetic number, because the mean of its divisors is an integer number (9657459).

Almost surely, 2^64303405 is an apocalyptic number.

It is an amenable number.

64303405 is a deficient number, since it is larger than the sum of its proper divisors (12956267).

64303405 is a wasteful number, since it uses less digits than its factorization.

64303405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15935.

The product of its (nonzero) digits is 4320, while the sum is 25.

The square root of 64303405 is about 8018.9403913485. The cubic root of 64303405 is about 400.6310975162.

The spelling of 64303405 in words is "sixty-four million, three hundred three thousand, four hundred five".