43725949 has 2 divisors, whose sum is σ = 43725950. Its totient is φ = 43725948.

The previous prime is 43725937. The next prime is 43725953. The reversal of 43725949 is 94952734.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 43322724 + 403225 = 6582^2 + 635^2 .

It is a cyclic number.

It is not a de Polignac number, because 43725949 - 2⁵ = 43725917 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43725449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21862974 + 21862975.

It is an arithmetic number, because the mean of its divisors is an integer number (21862975).

Almost surely, 2^43725949 is an apocalyptic number.

It is an amenable number.

43725949 is a deficient number, since it is larger than the sum of its proper divisors (1).

43725949 is an equidigital number, since it uses as much as digits as its factorization.

43725949 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 272160, while the sum is 43.

The square root of 43725949 is about 6612.5599430175. The cubic root of 43725949 is about 352.3003554031.

The spelling of 43725949 in words is "forty-three million, seven hundred twenty-five thousand, nine hundred forty-nine".