43041979 has 2 divisors, whose sum is σ = 43041980. Its totient is φ = 43041978.

The previous prime is 43041953. The next prime is 43041983. The reversal of 43041979 is 97914034.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 43041979 - 2⁷ = 43041851 is a prime.

It is a super-2 number, since 2×43041979² = 3705223912472882, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (43045979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21520989 + 21520990.

It is an arithmetic number, because the mean of its divisors is an integer number (21520990).

Almost surely, 2^43041979 is an apocalyptic number.

43041979 is a deficient number, since it is larger than the sum of its proper divisors (1).

43041979 is an equidigital number, since it uses as much as digits as its factorization.

43041979 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27216, while the sum is 37.

The square root of 43041979 is about 6560.6386122084. The cubic root of 43041979 is about 350.4537760496.

The spelling of 43041979 in words is "forty-three million, forty-one thousand, nine hundred seventy-nine".