238472887 has 8 divisors (see below), whose sum is σ = 247060800. Its totient is φ = 229909344.

The previous prime is 238472879. The next prime is 238472891. The reversal of 238472887 is 788274832.

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

It is a cyclic number.

It is not a de Polignac number, because 238472887 - 2³ = 238472879 is a prime.

It is a super-2 number, since 2×238472887² = 113738635668229538, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 238472887.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238472587) 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, 15133 + ... + 26569.

It is an arithmetic number, because the mean of its divisors is an integer number (30882600).

Almost surely, 2^238472887 is an apocalyptic number.

238472887 is a deficient number, since it is larger than the sum of its proper divisors (8587913).

238472887 is a wasteful number, since it uses less digits than its factorization.

238472887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12185.

The product of its digits is 1204224, while the sum is 49.

The square root of 238472887 is about 15442.5673707451. The cubic root of 238472887 is about 620.1256136399.

The spelling of 238472887 in words is "two hundred thirty-eight million, four hundred seventy-two thousand, eight hundred eighty-seven".