64857466 has 4 divisors (see below), whose sum is σ = 97286202. Its totient is φ = 32428732.

The previous prime is 64857451. The next prime is 64857491. The reversal of 64857466 is 66475846.

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., 49294441 + 15563025 = 7021^2 + 3945^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16214365 + ... + 16214368.

Almost surely, 2^64857466 is an apocalyptic number.

64857466 is a deficient number, since it is larger than the sum of its proper divisors (32428736).

64857466 is a wasteful number, since it uses less digits than its factorization.

64857466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32428735.

The product of its digits is 967680, while the sum is 46.

The square root of 64857466 is about 8053.4133136205. The cubic root of 64857466 is about 401.7784684061.

The spelling of 64857466 in words is "sixty-four million, eight hundred fifty-seven thousand, four hundred sixty-six".