238769907 has 4 divisors (see below), whose sum is σ = 318359880. Its totient is φ = 159179936.

The previous prime is 238769887. The next prime is 238769953. The reversal of 238769907 is 709967832.

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 238769907 - 2¹⁵ = 238737139 is a prime.

It is a super-2 number, since 2×238769907² = 114022136977577298, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 238769907.

It is not an unprimeable number, because it can be changed into a prime (238769957) 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, 39794982 + ... + 39794987.

It is an arithmetic number, because the mean of its divisors is an integer number (79589970).

Almost surely, 2^238769907 is an apocalyptic number.

238769907 is a deficient number, since it is larger than the sum of its proper divisors (79589973).

238769907 is an equidigital number, since it uses as much as digits as its factorization.

238769907 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79589972.

The product of its (nonzero) digits is 1143072, while the sum is 51.

The square root of 238769907 is about 15452.1813023275. The cubic root of 238769907 is about 620.3829640596.

The spelling of 238769907 in words is "two hundred thirty-eight million, seven hundred sixty-nine thousand, nine hundred seven".