64477446 has 32 divisors (see below), whose sum is σ = 141516288. Its totient is φ = 19422240.

The previous prime is 64477429. The next prime is 64477459.

64477446 is nontrivially palindromic in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 64477398 and 64477407.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8595 + ... + 14241.

It is an arithmetic number, because the mean of its divisors is an integer number (4422384).

Almost surely, 2^64477446 is an apocalyptic number.

64477446 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

64477446 is an abundant number, since it is smaller than the sum of its proper divisors (77038842).

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

64477446 is a wasteful number, since it uses less digits than its factorization.

64477446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5836.

The product of its digits is 451584, while the sum is 42.

The square root of 64477446 is about 8029.7849286267. The cubic root of 64477446 is about 400.9922159006.

The spelling of 64477446 in words is "sixty-four million, four hundred seventy-seven thousand, four hundred forty-six".