64446698 has 4 divisors (see below), whose sum is σ = 96670050. Its totient is φ = 32223348.

The previous prime is 64446691. The next prime is 64446721. The reversal of 64446698 is 89664446.

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., 63568729 + 877969 = 7973^2 + 937^2 .

It is not an unprimeable number, because it can be changed into a prime (64446691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16111673 + ... + 16111676.

Almost surely, 2^64446698 is an apocalyptic number.

64446698 is a deficient number, since it is larger than the sum of its proper divisors (32223352).

64446698 is a wasteful number, since it uses less digits than its factorization.

64446698 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32223351.

The product of its digits is 995328, while the sum is 47.

The square root of 64446698 is about 8027.8700786697. The cubic root of 64446698 is about 400.9284640521.

The spelling of 64446698 in words is "sixty-four million, four hundred forty-six thousand, six hundred ninety-eight".