87753121 has 8 divisors (see below), whose sum is σ = 89066880. Its totient is φ = 86444592.

The previous prime is 87753091. The next prime is 87753131. The reversal of 87753121 is 12135778.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-87753121 is a prime.

It is a super-2 number, since 2×87753121² = 15401220490481282, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87753131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43491 + ... + 45463.

It is an arithmetic number, because the mean of its divisors is an integer number (11133360).

Almost surely, 2^87753121 is an apocalyptic number.

It is an amenable number.

87753121 is a deficient number, since it is larger than the sum of its proper divisors (1313759).

87753121 is a wasteful number, since it uses less digits than its factorization.

87753121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2615.

The product of its digits is 11760, while the sum is 34.

The square root of 87753121 is about 9367.6635827724. The cubic root of 87753121 is about 444.3796785464.

Adding to 87753121 its reverse (12135778), we get a palindrome (99888899).

The spelling of 87753121 in words is "eighty-seven million, seven hundred fifty-three thousand, one hundred twenty-one".