238983686 has 8 divisors (see below), whose sum is σ = 358893504. Its totient is φ = 119352520.

The previous prime is 238983659. The next prime is 238983697. The reversal of 238983686 is 686389832.

It is a happy number.

238983686 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-2 number, since 2×238983686² = 114226404348293192, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67505 + ... + 70956.

It is an arithmetic number, because the mean of its divisors is an integer number (44861688).

Almost surely, 2^238983686 is an apocalyptic number.

238983686 is a deficient number, since it is larger than the sum of its proper divisors (119909818).

238983686 is a wasteful number, since it uses less digits than its factorization.

238983686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139326.

The product of its digits is 2985984, while the sum is 53.

The square root of 238983686 is about 15459.0971922684. The cubic root of 238983686 is about 620.5680589763.

The spelling of 238983686 in words is "two hundred thirty-eight million, nine hundred eighty-three thousand, six hundred eighty-six".