239319693 has 24 divisors (see below), whose sum is σ = 366795000. Its totient is φ = 149842944.

The previous prime is 239319679. The next prime is 239319713. The reversal of 239319693 is 396913932.

It can be written as a sum of positive squares in 4 ways, for example, as 4678569 + 234641124 = 2163^2 + 15318^2 .

It is not a de Polignac number, because 239319693 - 2²⁴ = 222542477 is a prime.

It is a super-2 number, since 2×239319693² = 114547830915228498, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (239319643) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 85683 + ... + 88431.

It is an arithmetic number, because the mean of its divisors is an integer number (15283125).

Almost surely, 2^239319693 is an apocalyptic number.

It is an amenable number.

239319693 is a deficient number, since it is larger than the sum of its proper divisors (127475307).

239319693 is a wasteful number, since it uses less digits than its factorization.

239319693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3341 (or 3338 counting only the distinct ones).

The product of its digits is 236196, while the sum is 45.

The square root of 239319693 is about 15469.9609889618. The cubic root of 239319693 is about 620.8587588264.

The spelling of 239319693 in words is "two hundred thirty-nine million, three hundred nineteen thousand, six hundred ninety-three".