87729532 has 24 divisors (see below), whose sum is σ = 169989120. Its totient is φ = 39280560.

The previous prime is 87729527. The next prime is 87729539. The reversal of 87729532 is 23592778.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87729539) 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, 11932 + ... + 17827.

It is an arithmetic number, because the mean of its divisors is an integer number (7082880).

Almost surely, 2^87729532 is an apocalyptic number.

It is an amenable number.

87729532 is a deficient number, since it is larger than the sum of its proper divisors (82259588).

87729532 is a wasteful number, since it uses less digits than its factorization.

87729532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29841 (or 29839 counting only the distinct ones).

The product of its digits is 211680, while the sum is 43.

The square root of 87729532 is about 9366.4044328654. The cubic root of 87729532 is about 444.3398569365.

The spelling of 87729532 in words is "eighty-seven million, seven hundred twenty-nine thousand, five hundred thirty-two".