87705284 has 6 divisors (see below), whose sum is σ = 153484254. Its totient is φ = 43852640.

The previous prime is 87705283. The next prime is 87705287. The reversal of 87705284 is 48250778.

It can be written as a sum of positive squares in only one way, i.e., 83210884 + 4494400 = 9122^2 + 2120^2 .

It is not an unprimeable number, because it can be changed into a prime (87705283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10963157 + ... + 10963164.

It is an arithmetic number, because the mean of its divisors is an integer number (25580709).

Almost surely, 2^87705284 is an apocalyptic number.

It is an amenable number.

87705284 is a deficient number, since it is larger than the sum of its proper divisors (65778970).

87705284 is a wasteful number, since it uses less digits than its factorization.

87705284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21926325 (or 21926323 counting only the distinct ones).

The product of its (nonzero) digits is 125440, while the sum is 41.

The square root of 87705284 is about 9365.1099299474. The cubic root of 87705284 is about 444.2989153994.

The spelling of 87705284 in words is "eighty-seven million, seven hundred five thousand, two hundred eighty-four".