87230311 has 16 divisors (see below), whose sum is σ = 108328960. Its totient is φ = 68545440.

The previous prime is 87230309. The next prime is 87230317. The reversal of 87230311 is 11303278.

It is a cyclic number.

It is not a de Polignac number, because 87230311 - 2¹ = 87230309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87230317) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6456 + ... + 14701.

It is an arithmetic number, because the mean of its divisors is an integer number (6770560).

Almost surely, 2^87230311 is an apocalyptic number.

87230311 is a deficient number, since it is larger than the sum of its proper divisors (21098649).

87230311 is a wasteful number, since it uses less digits than its factorization.

87230311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21214.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 87230311 is about 9339.7168586633. The cubic root of 87230311 is about 443.4954210992.

Adding to 87230311 its reverse (11303278), we get a palindrome (98533589).

The spelling of 87230311 in words is "eighty-seven million, two hundred thirty thousand, three hundred eleven".