23680397 has 8 divisors (see below), whose sum is σ = 25852344. Its totient is φ = 21558528.

The previous prime is 23680381. The next prime is 23680427. The reversal of 23680397 is 79308632.

It can be written as a sum of positive squares in 4 ways, for example, as 2758921 + 20921476 = 1661^2 + 4574^2 .

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 23680397 - 2⁴ = 23680381 is a prime.

It is a super-2 number, since 2×23680397² = 1121522404155218, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23680397.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23680357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11528 + ... + 13425.

It is an arithmetic number, because the mean of its divisors is an integer number (3231543).

Almost surely, 2^23680397 is an apocalyptic number.

It is an amenable number.

23680397 is a deficient number, since it is larger than the sum of its proper divisors (2171947).

23680397 is a wasteful number, since it uses less digits than its factorization.

23680397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25039.

The product of its (nonzero) digits is 54432, while the sum is 38.

The square root of 23680397 is about 4866.2508155663. The cubic root of 23680397 is about 287.1637788511.

The spelling of 23680397 in words is "twenty-three million, six hundred eighty thousand, three hundred ninety-seven".