64127634 has 32 divisors (see below), whose sum is σ = 134922240. Its totient is φ = 20279952.

The previous prime is 64127633. The next prime is 64127639. The reversal of 64127634 is 43672146.

It is a happy number.

It is a super-2 number, since 2×64127634² = 8224706884875912, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 64127595 and 64127604.

It is not an unprimeable number, because it can be changed into a prime (64127633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15697 + ... + 19355.

It is an arithmetic number, because the mean of its divisors is an integer number (4216320).

Almost surely, 2^64127634 is an apocalyptic number.

64127634 is an abundant number, since it is smaller than the sum of its proper divisors (70794606).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64127634 is a wasteful number, since it uses less digits than its factorization.

64127634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3814.

The product of its digits is 24192, while the sum is 33.

The square root of 64127634 is about 8007.9731518031. The cubic root of 64127634 is about 400.2657275997.

The spelling of 64127634 in words is "sixty-four million, one hundred twenty-seven thousand, six hundred thirty-four".