43487023 has 2 divisors, whose sum is σ = 43487024. Its totient is φ = 43487022.

The previous prime is 43486999. The next prime is 43487039. The reversal of 43487023 is 32078434.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 43487023 - 2¹⁷ = 43355951 is a prime.

It is a super-2 number, since 2×43487023² = 3782242338805058, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43487063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21743511 + 21743512.

It is an arithmetic number, because the mean of its divisors is an integer number (21743512).

Almost surely, 2^43487023 is an apocalyptic number.

43487023 is a deficient number, since it is larger than the sum of its proper divisors (1).

43487023 is an equidigital number, since it uses as much as digits as its factorization.

43487023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16128, while the sum is 31.

The square root of 43487023 is about 6594.4691219233. The cubic root of 43487023 is about 351.6575068055.

The spelling of 43487023 in words is "forty-three million, four hundred eighty-seven thousand, twenty-three".