239468689 has 8 divisors (see below), whose sum is σ = 251121960. Its totient is φ = 228041856.

The previous prime is 239468683. The next prime is 239468701. The reversal of 239468689 is 986864932.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 29073664 + 210395025 = 5392^2 + 14505^2 .

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 239468689 - 2¹³ = 239460497 is a prime.

It is a super-2 number, since 2×239468689² = 114690506022757442, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (239468683) 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, 54442 + ... + 58675.

It is an arithmetic number, because the mean of its divisors is an integer number (31390245).

Almost surely, 2^239468689 is an apocalyptic number.

239468689 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

239468689 is a deficient number, since it is larger than the sum of its proper divisors (11653271).

239468689 is a wasteful number, since it uses less digits than its factorization.

239468689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113219.

The product of its digits is 4478976, while the sum is 55.

The square root of 239468689 is about 15474.7758949847. The cubic root of 239468689 is about 620.9875771443.

The spelling of 239468689 in words is "two hundred thirty-nine million, four hundred sixty-eight thousand, six hundred eighty-nine".