87241337 has 2 divisors, whose sum is σ = 87241338. Its totient is φ = 87241336.

The previous prime is 87241333. The next prime is 87241361. The reversal of 87241337 is 73314278.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 86508601 + 732736 = 9301^2 + 856^2 .

It is a cyclic number.

It is not a de Polignac number, because 87241337 - 2² = 87241333 is a prime.

It is a super-2 number, since 2×87241337² = 15222101763095138, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 87241297 and 87241306.

It is not a weakly prime, because it can be changed into another prime (87241333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43620668 + 43620669.

It is an arithmetic number, because the mean of its divisors is an integer number (43620669).

Almost surely, 2^87241337 is an apocalyptic number.

It is an amenable number.

87241337 is a deficient number, since it is larger than the sum of its proper divisors (1).

87241337 is an equidigital number, since it uses as much as digits as its factorization.

87241337 is an evil number, because the sum of its binary digits is even.

The product of its digits is 28224, while the sum is 35.

The square root of 87241337 is about 9340.3071148651. The cubic root of 87241337 is about 443.5141064027.

It can be divided in two parts, 87241 and 337, that added together give a palindrome (87578).

The spelling of 87241337 in words is "eighty-seven million, two hundred forty-one thousand, three hundred thirty-seven".