64913433 has 8 divisors (see below), whose sum is σ = 93209088. Its totient is φ = 39946704.

The previous prime is 64913423. The next prime is 64913437. The reversal of 64913433 is 33431946.

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

It is not a de Polignac number, because 64913433 - 2¹⁶ = 64847897 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 64913394 and 64913403.

It is not an unprimeable number, because it can be changed into a prime (64913437) 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, 832185 + ... + 832262.

It is an arithmetic number, because the mean of its divisors is an integer number (11651136).

Almost surely, 2^64913433 is an apocalyptic number.

It is an amenable number.

64913433 is a deficient number, since it is larger than the sum of its proper divisors (28295655).

64913433 is a wasteful number, since it uses less digits than its factorization.

64913433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1664463.

The product of its digits is 23328, while the sum is 33.

The square root of 64913433 is about 8056.8873021782. The cubic root of 64913433 is about 401.8940031422.

The spelling of 64913433 in words is "sixty-four million, nine hundred thirteen thousand, four hundred thirty-three".