87019652 has 12 divisors (see below), whose sum is σ = 152365836. Its totient is φ = 43486560.

The previous prime is 87019643. The next prime is 87019657. The reversal of 87019652 is 25691078.

It can be written as a sum of positive squares in 2 ways, for example, as 28558336 + 58461316 = 5344^2 + 7646^2 .

It is a super-3 number, since 3×87019652³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (87019657) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4718 + ... + 14010.

It is an arithmetic number, because the mean of its divisors is an integer number (12697153).

Almost surely, 2^87019652 is an apocalyptic number.

It is an amenable number.

87019652 is a deficient number, since it is larger than the sum of its proper divisors (65346184).

87019652 is a wasteful number, since it uses less digits than its factorization.

87019652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11638 (or 11636 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 38.

The square root of 87019652 is about 9328.4324513822. The cubic root of 87019652 is about 443.1381232391.

The spelling of 87019652 in words is "eighty-seven million, nineteen thousand, six hundred fifty-two".