64838545 has 8 divisors (see below), whose sum is σ = 81901440. Its totient is φ = 49140720.

The previous prime is 64838537. The next prime is 64838551. The reversal of 64838545 is 54583846.

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

It is not a de Polignac number, because 64838545 - 2³ = 64838537 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 341161 + ... + 341350.

It is an arithmetic number, because the mean of its divisors is an integer number (10237680).

Almost surely, 2^64838545 is an apocalyptic number.

It is an amenable number.

64838545 is a deficient number, since it is larger than the sum of its proper divisors (17062895).

64838545 is a wasteful number, since it uses less digits than its factorization.

64838545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 682535.

The product of its digits is 460800, while the sum is 43.

The square root of 64838545 is about 8052.2385086385. The cubic root of 64838545 is about 401.7393940572.

It can be divided in two parts, 648 and 38545, that added together give a palindrome (39193).

The spelling of 64838545 in words is "sixty-four million, eight hundred thirty-eight thousand, five hundred forty-five".