47664532 has 12 divisors (see below), whose sum is σ = 88319700. Its totient is φ = 22430336.

The previous prime is 47664523. The next prime is 47664553. The reversal of 47664532 is 23546674.

It can be written as a sum of positive squares in 2 ways, for example, as 26998416 + 20666116 = 5196^2 + 4546^2 .

It is a super-2 number, since 2×47664532² = 4543815221558048, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 47664491 and 47664500.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 350407 + ... + 350542.

It is an arithmetic number, because the mean of its divisors is an integer number (7359975).

Almost surely, 2^47664532 is an apocalyptic number.

It is an amenable number.

47664532 is a deficient number, since it is larger than the sum of its proper divisors (40655168).

47664532 is a wasteful number, since it uses less digits than its factorization.

47664532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 700970 (or 700968 counting only the distinct ones).

The product of its digits is 120960, while the sum is 37.

The square root of 47664532 is about 6903.9504633217. The cubic root of 47664532 is about 362.5754915309.

It can be divided in two parts, 4766 and 4532, that multiplied together give a palindrome (21599512).

The spelling of 47664532 in words is "forty-seven million, six hundred sixty-four thousand, five hundred thirty-two".