86660238 has 16 divisors (see below), whose sum is σ = 198080640. Its totient is φ = 24760056.

The previous prime is 86660227. The next prime is 86660239. The reversal of 86660238 is 83206668.

It is a junction number, because it is equal to n+sod(n) for n = 86660196 and 86660205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86660239) 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, 1031628 + ... + 1031711.

It is an arithmetic number, because the mean of its divisors is an integer number (12380040).

Almost surely, 2^86660238 is an apocalyptic number.

86660238 is an abundant number, since it is smaller than the sum of its proper divisors (111420402).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

86660238 is a wasteful number, since it uses less digits than its factorization.

86660238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2063351.

The product of its (nonzero) digits is 82944, while the sum is 39.

The square root of 86660238 is about 9309.1480813230. The cubic root of 86660238 is about 442.5271891111.

The spelling of 86660238 in words is "eighty-six million, six hundred sixty thousand, two hundred thirty-eight".