238783966 has 4 divisors (see below), whose sum is σ = 358175952. Its totient is φ = 119391982.

The previous prime is 238783957. The next prime is 238783967. The reversal of 238783966 is 669387832.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238783967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59695990 + ... + 59695993.

It is an arithmetic number, because the mean of its divisors is an integer number (89543988).

Almost surely, 2^238783966 is an apocalyptic number.

238783966 is a deficient number, since it is larger than the sum of its proper divisors (119391986).

238783966 is a wasteful number, since it uses less digits than its factorization.

238783966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119391985.

The product of its digits is 2612736, while the sum is 52.

The square root of 238783966 is about 15452.6362152223. The cubic root of 238783966 is about 620.3951400676.

The spelling of 238783966 in words is "two hundred thirty-eight million, seven hundred eighty-three thousand, nine hundred sixty-six".