945618623 has 2 divisors, whose sum is σ = 945618624. Its totient is φ = 945618622.

The previous prime is 945618613. The next prime is 945618643. The reversal of 945618623 is 326816549.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 945618623 - 2⁴ = 945618607 is a prime.

It is a super-2 number, since 2×945618623² = 1788389160328832258, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (945618613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 472809311 + 472809312.

It is an arithmetic number, because the mean of its divisors is an integer number (472809312).

Almost surely, 2^945618623 is an apocalyptic number.

945618623 is a deficient number, since it is larger than the sum of its proper divisors (1).

945618623 is an equidigital number, since it uses as much as digits as its factorization.

945618623 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 311040, while the sum is 44.

The square root of 945618623 is about 30750.9125555649. The cubic root of 945618623 is about 981.5339793482.

The spelling of 945618623 in words is "nine hundred forty-five million, six hundred eighteen thousand, six hundred twenty-three".