43743923 has 2 divisors, whose sum is σ = 43743924. Its totient is φ = 43743922.

The previous prime is 43743859. The next prime is 43743929. The reversal of 43743923 is 32934734.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 43743923 - 2⁶ = 43743859 is a prime.

It is not a weakly prime, because it can be changed into another prime (43743929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21871961 + 21871962.

It is an arithmetic number, because the mean of its divisors is an integer number (21871962).

Almost surely, 2^43743923 is an apocalyptic number.

43743923 is a deficient number, since it is larger than the sum of its proper divisors (1).

43743923 is an equidigital number, since it uses as much as digits as its factorization.

43743923 is an evil number, because the sum of its binary digits is even.

The product of its digits is 54432, while the sum is 35.

The square root of 43743923 is about 6613.9188836876. The cubic root of 43743923 is about 352.3486210156.

The spelling of 43743923 in words is "forty-three million, seven hundred forty-three thousand, nine hundred twenty-three".