64849557 has 8 divisors (see below), whose sum is σ = 86530176. Its totient is φ = 43200992.

The previous prime is 64849507. The next prime is 64849571. The reversal of 64849557 is 75594846.

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 64849557 - 2⁷ = 64849429 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64849507) 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, 2808 + ... + 11729.

It is an arithmetic number, because the mean of its divisors is an integer number (10816272).

Almost surely, 2^64849557 is an apocalyptic number.

It is an amenable number.

64849557 is a deficient number, since it is larger than the sum of its proper divisors (21680619).

64849557 is a wasteful number, since it uses less digits than its factorization.

64849557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16027.

The product of its digits is 1209600, while the sum is 48.

The square root of 64849557 is about 8052.9222646192. The cubic root of 64849557 is about 401.7621362074.

It can be divided in two parts, 648 and 49557, that added together give a palindrome (50205).

The spelling of 64849557 in words is "sixty-four million, eight hundred forty-nine thousand, five hundred fifty-seven".