238734887 has 4 divisors (see below), whose sum is σ = 239305080. Its totient is φ = 238164696.

The previous prime is 238734883. The next prime is 238734889. The reversal of 238734887 is 788437832.

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

It is a cyclic number.

It is not a de Polignac number, because 238734887 - 2² = 238734883 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 (238734883) 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, 284468 + ... + 285305.

It is an arithmetic number, because the mean of its divisors is an integer number (59826270).

Almost surely, 2^238734887 is an apocalyptic number.

238734887 is a deficient number, since it is larger than the sum of its proper divisors (570193).

238734887 is an equidigital number, since it uses as much as digits as its factorization.

238734887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 570192.

The product of its digits is 1806336, while the sum is 50.

The square root of 238734887 is about 15451.0480874276. The cubic root of 238734887 is about 620.3526323846.

The spelling of 238734887 in words is "two hundred thirty-eight million, seven hundred thirty-four thousand, eight hundred eighty-seven".