23078437 has 2 divisors, whose sum is σ = 23078438. Its totient is φ = 23078436.

The previous prime is 23078413. The next prime is 23078441. The reversal of 23078437 is 73487032.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18198756 + 4879681 = 4266^2 + 2209^2 .

It is a cyclic number.

It is not a de Polignac number, because 23078437 - 2¹⁵ = 23045669 is a prime.

It is a super-2 number, since 2×23078437² = 1065228508725938, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23078137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11539218 + 11539219.

It is an arithmetic number, because the mean of its divisors is an integer number (11539219).

Almost surely, 2^23078437 is an apocalyptic number.

It is an amenable number.

23078437 is a deficient number, since it is larger than the sum of its proper divisors (1).

23078437 is an equidigital number, since it uses as much as digits as its factorization.

23078437 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28224, while the sum is 34.

The square root of 23078437 is about 4804.0021856781. The cubic root of 23078437 is about 284.7096129143.

The spelling of 23078437 in words is "twenty-three million, seventy-eight thousand, four hundred thirty-seven".