87242201 has 8 divisors (see below), whose sum is σ = 88142208. Its totient is φ = 86346000.

The previous prime is 87242191. The next prime is 87242203. The reversal of 87242201 is 10224278.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 87242201 - 2¹⁰ = 87241177 is a prime.

It is a super-2 number, since 2×87242201² = 15222403270648802, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (87242203) 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, 70256 + ... + 71486.

It is an arithmetic number, because the mean of its divisors is an integer number (11017776).

Almost surely, 2^87242201 is an apocalyptic number.

It is an amenable number.

87242201 is a deficient number, since it is larger than the sum of its proper divisors (900007).

87242201 is a wasteful number, since it uses less digits than its factorization.

87242201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1903.

The product of its (nonzero) digits is 1792, while the sum is 26.

The square root of 87242201 is about 9340.3533659065. The cubic root of 87242201 is about 443.5155705210.

Adding to 87242201 its reverse (10224278), we get a palindrome (97466479).

The spelling of 87242201 in words is "eighty-seven million, two hundred forty-two thousand, two hundred one".