64473432 has 16 divisors (see below), whose sum is σ = 161183640. Its totient is φ = 21491136.

The previous prime is 64473419. The next prime is 64473457. The reversal of 64473432 is 23437446.

It is a junction number, because it is equal to n+sod(n) for n = 64473393 and 64473402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1343173 + ... + 1343220.

Almost surely, 2^64473432 is an apocalyptic number.

It is an amenable number.

64473432 is an abundant number, since it is smaller than the sum of its proper divisors (96710208).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64473432 is a wasteful number, since it uses less digits than its factorization.

64473432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2686402 (or 2686398 counting only the distinct ones).

The product of its digits is 48384, while the sum is 33.

The square root of 64473432 is about 8029.5349803086. The cubic root of 64473432 is about 400.9838945611.

The spelling of 64473432 in words is "sixty-four million, four hundred seventy-three thousand, four hundred thirty-two".