64123436 has 12 divisors (see below), whose sum is σ = 120848112. Its totient is φ = 29595408.

The previous prime is 64123421. The next prime is 64123447. The reversal of 64123436 is 63432146.

64123436 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×64123436² = 8223630088892192, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 64123399 and 64123408.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 616520 + ... + 616623.

It is an arithmetic number, because the mean of its divisors is an integer number (10070676).

Almost surely, 2^64123436 is an apocalyptic number.

It is an amenable number.

64123436 is a deficient number, since it is larger than the sum of its proper divisors (56724676).

64123436 is a wasteful number, since it uses less digits than its factorization.

64123436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1233160 (or 1233158 counting only the distinct ones).

The product of its digits is 10368, while the sum is 29.

The square root of 64123436 is about 8007.7110337474. The cubic root of 64123436 is about 400.2569931842.

The spelling of 64123436 in words is "sixty-four million, one hundred twenty-three thousand, four hundred thirty-six".