64434293 has 16 divisors (see below), whose sum is σ = 83828736. Its totient is φ = 48024240.

The previous prime is 64434283. The next prime is 64434299. The reversal of 64434293 is 39243446.

It is not a de Polignac number, because 64434293 - 2⁴ = 64434277 is a prime.

It is a super-2 number, since 2×64434293² = 8303556228819698, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64434299) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16421 + ... + 19962.

It is an arithmetic number, because the mean of its divisors is an integer number (5239296).

Almost surely, 2^64434293 is an apocalyptic number.

It is an amenable number.

64434293 is a deficient number, since it is larger than the sum of its proper divisors (19394443).

64434293 is a wasteful number, since it uses less digits than its factorization.

64434293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36424.

The product of its digits is 62208, while the sum is 35.

The square root of 64434293 is about 8027.0974206123. The cubic root of 64434293 is about 400.9027382100.

The spelling of 64434293 in words is "sixty-four million, four hundred thirty-four thousand, two hundred ninety-three".