64473434 has 4 divisors (see below), whose sum is σ = 96710154. Its totient is φ = 32236716.

The previous prime is 64473419. The next prime is 64473457. The reversal of 64473434 is 43437446.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 57047809 + 7425625 = 7553^2 + 2725^2 .

It is a junction number, because it is equal to n+sod(n) for n = 64473394 and 64473403.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16118357 + ... + 16118360.

Almost surely, 2^64473434 is an apocalyptic number.

64473434 is a deficient number, since it is larger than the sum of its proper divisors (32236720).

64473434 is a wasteful number, since it uses less digits than its factorization.

64473434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32236719.

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

The square root of 64473434 is about 8029.5351048488. The cubic root of 64473434 is about 400.9838987074.

The spelling of 64473434 in words is "sixty-four million, four hundred seventy-three thousand, four hundred thirty-four".