43628623 has 2 divisors, whose sum is σ = 43628624. Its totient is φ = 43628622.

The previous prime is 43628567. The next prime is 43628639. The reversal of 43628623 is 32682634.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 43628623 - 2⁹ = 43628111 is a prime.

It is a super-2 number, since 2×43628623² = 3806913489752258, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43628653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21814311 + 21814312.

It is an arithmetic number, because the mean of its divisors is an integer number (21814312).

Almost surely, 2^43628623 is an apocalyptic number.

43628623 is a deficient number, since it is larger than the sum of its proper divisors (1).

43628623 is an equidigital number, since it uses as much as digits as its factorization.

43628623 is an evil number, because the sum of its binary digits is even.

The product of its digits is 41472, while the sum is 34.

The square root of 43628623 is about 6605.1966662621. The cubic root of 43628623 is about 352.0387757516.

The spelling of 43628623 in words is "forty-three million, six hundred twenty-eight thousand, six hundred twenty-three".