64871446 has 8 divisors (see below), whose sum is σ = 97344864. Its totient is φ = 32423160.

The previous prime is 64871423. The next prime is 64871447. The reversal of 64871446 is 64417846.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×64871446² = 8416609012261832, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 64871399 and 64871408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64871447) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2796 + ... + 11728.

It is an arithmetic number, because the mean of its divisors is an integer number (12168108).

Almost surely, 2^64871446 is an apocalyptic number.

64871446 is a deficient number, since it is larger than the sum of its proper divisors (32473418).

64871446 is a wasteful number, since it uses less digits than its factorization.

64871446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12566.

The product of its digits is 129024, while the sum is 40.

The square root of 64871446 is about 8054.2812218099. The cubic root of 64871446 is about 401.8073340599.

The spelling of 64871446 in words is "sixty-four million, eight hundred seventy-one thousand, four hundred forty-six".