87241331 has 8 divisors (see below), whose sum is σ = 97235280. Its totient is φ = 77787648.

The previous prime is 87241327. The next prime is 87241333. The reversal of 87241331 is 13314278.

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

It is not a de Polignac number, because 87241331 - 2² = 87241327 is a prime.

It is a super-2 number, since 2×87241331² = 15222099669303122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 87241294 and 87241303.

It is not an unprimeable number, because it can be changed into a prime (87241333) 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, 134726 + ... + 135371.

It is an arithmetic number, because the mean of its divisors is an integer number (12154410).

Almost surely, 2^87241331 is an apocalyptic number.

87241331 is a deficient number, since it is larger than the sum of its proper divisors (9993949).

87241331 is a wasteful number, since it uses less digits than its factorization.

87241331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270133.

The product of its digits is 4032, while the sum is 29.

The square root of 87241331 is about 9340.3067936765. The cubic root of 87241331 is about 443.5140962351.

The spelling of 87241331 in words is "eighty-seven million, two hundred forty-one thousand, three hundred thirty-one".