64124643 has 8 divisors (see below), whose sum is σ = 93272256. Its totient is φ = 38863400.

The previous prime is 64124617. The next prime is 64124657. The reversal of 64124643 is 34642146.

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

It is a cyclic number.

It is not a de Polignac number, because 64124643 - 2⁶ = 64124579 is a prime.

It is a super-2 number, since 2×64124643² = 8223939679754898, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 64124643.

It is not an unprimeable number, because it can be changed into a prime (64124743) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 971553 + ... + 971618.

It is an arithmetic number, because the mean of its divisors is an integer number (11659032).

Almost surely, 2^64124643 is an apocalyptic number.

64124643 is a deficient number, since it is larger than the sum of its proper divisors (29147613).

64124643 is a wasteful number, since it uses less digits than its factorization.

64124643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1943185.

The product of its digits is 13824, while the sum is 30.

The square root of 64124643 is about 8007.7863982501. The cubic root of 64124643 is about 400.2595045238.

Adding to 64124643 its reverse (34642146), we get a palindrome (98766789).

The spelling of 64124643 in words is "sixty-four million, one hundred twenty-four thousand, six hundred forty-three".