64321652 has 36 divisors (see below), whose sum is σ = 120530340. Its totient is φ = 29998080.

The previous prime is 64321619. The next prime is 64321667. The reversal of 64321652 is 25612346.

It can be written as a sum of positive squares in 2 ways, for example, as 53523856 + 10797796 = 7316^2 + 3286^2 .

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 111188 + ... + 111764.

It is an arithmetic number, because the mean of its divisors is an integer number (3348065).

Almost surely, 2^64321652 is an apocalyptic number.

64321652 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

It is an amenable number.

64321652 is a deficient number, since it is larger than the sum of its proper divisors (56208688).

64321652 is a wasteful number, since it uses less digits than its factorization.

64321652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 672 (or 639 counting only the distinct ones).

The product of its digits is 8640, while the sum is 29.

The square root of 64321652 is about 8020.0780544830. The cubic root of 64321652 is about 400.6689888444.

Adding to 64321652 its reverse (25612346), we get a palindrome (89933998).

The spelling of 64321652 in words is "sixty-four million, three hundred twenty-one thousand, six hundred fifty-two".