64416677 has 8 divisors (see below), whose sum is σ = 70681464. Its totient is φ = 58339008.

The previous prime is 64416673. The next prime is 64416691. The reversal of 64416677 is 77661446.

It is a happy number.

It is a Cunningham number, because it is equal to 8026²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 1 + 64416676 = 1^2 + 8026^2 .

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

It is not a de Polignac number, because 64416677 - 2² = 64416673 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64416673) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 46058 + ... + 47435.

It is an arithmetic number, because the mean of its divisors is an integer number (8835183).

Almost surely, 2^64416677 is an apocalyptic number.

It is an amenable number.

64416677 is a deficient number, since it is larger than the sum of its proper divisors (6264787).

64416677 is a wasteful number, since it uses less digits than its factorization.

64416677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93559.

The product of its digits is 169344, while the sum is 41.

The square root of 64416677 is about 8026.0000622975. Note that the first 4 decimals coincide. The cubic root of 64416677 is about 400.8661999734.

The spelling of 64416677 in words is "sixty-four million, four hundred sixteen thousand, six hundred seventy-seven".