35521664 has 16 divisors (see below), whose sum is σ = 70766070. Its totient is φ = 17760768.

The previous prime is 35521657. The next prime is 35521679. The reversal of 35521664 is 46612553.

It can be written as a sum of positive squares in only one way, i.e., 35521600 + 64 = 5960^2 + 8^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is a super-2 number, since 2×35521664² = 2523577226657792, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a self number, because there is not a number n which added to its sum of digits gives 35521664.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 138629 + ... + 138884.

Almost surely, 2^35521664 is an apocalyptic number.

It is an amenable number.

35521664 is a deficient number, since it is larger than the sum of its proper divisors (35244406).

35521664 is an equidigital number, since it uses as much as digits as its factorization.

35521664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277527 (or 277515 counting only the distinct ones).

The product of its digits is 21600, while the sum is 32.

The square root of 35521664 is about 5960.0053691251. The cubic root of 35521664 is about 328.7237636587.

It can be divided in two parts, 355216 and 64, that multiplied together give a square (22733824 = 4768²).

The spelling of 35521664 in words is "thirty-five million, five hundred twenty-one thousand, six hundred sixty-four".