64123675 has 24 divisors (see below), whose sum is σ = 99136512. Its totient is φ = 39972000.

The previous prime is 64123673. The next prime is 64123679. The reversal of 64123675 is 57632146.

It is a happy number.

It is not a de Polignac number, because 64123675 - 2¹ = 64123673 is a prime.

It is a super-2 number, since 2×64123675² = 8223691391011250, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 64123675.

It is not an unprimeable number, because it can be changed into a prime (64123673) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14731 + ... + 18580.

It is an arithmetic number, because the mean of its divisors is an integer number (4130688).

Almost surely, 2^64123675 is an apocalyptic number.

64123675 is a deficient number, since it is larger than the sum of its proper divisors (35012837).

64123675 is a wasteful number, since it uses less digits than its factorization.

64123675 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33339 (or 33334 counting only the distinct ones).

The product of its digits is 30240, while the sum is 34.

The square root of 64123675 is about 8007.7259568494. The cubic root of 64123675 is about 400.2574904611.

The spelling of 64123675 in words is "sixty-four million, one hundred twenty-three thousand, six hundred seventy-five".