79240243 has 2 divisors, whose sum is σ = 79240244. Its totient is φ = 79240242.

The previous prime is 79240237. The next prime is 79240277. The reversal of 79240243 is 34204297.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 79240243 - 2¹⁷ = 79109171 is a prime.

It is a super-2 number, since 2×79240243² = 12558032221398098, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (79240943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39620121 + 39620122.

It is an arithmetic number, because the mean of its divisors is an integer number (39620122).

Almost surely, 2^79240243 is an apocalyptic number.

79240243 is a deficient number, since it is larger than the sum of its proper divisors (1).

79240243 is an equidigital number, since it uses as much as digits as its factorization.

79240243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12096, while the sum is 31.

The square root of 79240243 is about 8901.6988827976. The cubic root of 79240243 is about 429.5185579721.

The spelling of 79240243 in words is "seventy-nine million, two hundred forty thousand, two hundred forty-three".