64734434 has 4 divisors (see below), whose sum is σ = 97101654. Its totient is φ = 32367216.

The previous prime is 64734427. The next prime is 64734451. The reversal of 64734434 is 43443746.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 43443746 = 2 ⋅21721873.

It can be written as a sum of positive squares in only one way, i.e., 64240225 + 494209 = 8015^2 + 703^2 .

It is a junction number, because it is equal to n+sod(n) for n = 64734394 and 64734403.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16183607 + ... + 16183610.

Almost surely, 2^64734434 is an apocalyptic number.

64734434 is a deficient number, since it is larger than the sum of its proper divisors (32367220).

64734434 is a wasteful number, since it uses less digits than its factorization.

64734434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32367219.

The product of its digits is 96768, while the sum is 35.

The square root of 64734434 is about 8045.7711874002. The cubic root of 64734434 is about 401.5242550716.

The spelling of 64734434 in words is "sixty-four million, seven hundred thirty-four thousand, four hundred thirty-four".