64724853 has 4 divisors (see below), whose sum is σ = 86299808. Its totient is φ = 43149900.

The previous prime is 64724833. The next prime is 64724857. The reversal of 64724853 is 35842746.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 64724853 - 2¹² = 64720757 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64724857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10787473 + ... + 10787478.

It is an arithmetic number, because the mean of its divisors is an integer number (21574952).

Almost surely, 2^64724853 is an apocalyptic number.

It is an amenable number.

64724853 is a deficient number, since it is larger than the sum of its proper divisors (21574955).

64724853 is a wasteful number, since it uses less digits than its factorization.

64724853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21574954.

The product of its digits is 161280, while the sum is 39.

The square root of 64724853 is about 8045.1757594225. The cubic root of 64724853 is about 401.5044449363.

It can be divided in two parts, 6472 and 4853, that added together give a triangular number (11325 = T₁₅₀).

The spelling of 64724853 in words is "sixty-four million, seven hundred twenty-four thousand, eight hundred fifty-three".