23440693 has 2 divisors, whose sum is σ = 23440694. Its totient is φ = 23440692.

The previous prime is 23440691. The next prime is 23440727. The reversal of 23440693 is 39604432.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15944049 + 7496644 = 3993^2 + 2738^2 .

It is a cyclic number.

It is not a de Polignac number, because 23440693 - 2¹ = 23440691 is a prime.

Together with 23440691, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23440691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11720346 + 11720347.

It is an arithmetic number, because the mean of its divisors is an integer number (11720347).

Almost surely, 2^23440693 is an apocalyptic number.

It is an amenable number.

23440693 is a deficient number, since it is larger than the sum of its proper divisors (1).

23440693 is an equidigital number, since it uses as much as digits as its factorization.

23440693 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15552, while the sum is 31.

The square root of 23440693 is about 4841.5589431504. The cubic root of 23440693 is about 286.1915558618.

The spelling of 23440693 in words is "twenty-three million, four hundred forty thousand, six hundred ninety-three".