238948637 has 4 divisors (see below), whose sum is σ = 242221980. Its totient is φ = 235675296.

The previous prime is 238948621. The next prime is 238948639. The reversal of 238948637 is 736849832.

238948637 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 183087961 + 55860676 = 13531^2 + 7474^2 .

It is a cyclic number.

It is not a de Polignac number, because 238948637 - 2⁴ = 238948621 is a prime.

It is a super-2 number, since 2×238948637² = 114192902248315538, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238948639) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1636562 + ... + 1636707.

It is an arithmetic number, because the mean of its divisors is an integer number (60555495).

Almost surely, 2^238948637 is an apocalyptic number.

It is an amenable number.

238948637 is a deficient number, since it is larger than the sum of its proper divisors (3273343).

238948637 is an equidigital number, since it uses as much as digits as its factorization.

238948637 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3273342.

The product of its digits is 1741824, while the sum is 50.

The square root of 238948637 is about 15457.9635463408. The cubic root of 238948637 is about 620.5377202899.

The spelling of 238948637 in words is "two hundred thirty-eight million, nine hundred forty-eight thousand, six hundred thirty-seven".