72374843 has 2 divisors, whose sum is σ = 72374844. Its totient is φ = 72374842.

The previous prime is 72374833. The next prime is 72374851. The reversal of 72374843 is 34847327.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 72374843 - 2⁶ = 72374779 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 72374797 and 72374806.

It is not a weakly prime, because it can be changed into another prime (72374803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36187421 + 36187422.

It is an arithmetic number, because the mean of its divisors is an integer number (36187422).

Almost surely, 2^72374843 is an apocalyptic number.

72374843 is a deficient number, since it is larger than the sum of its proper divisors (1).

72374843 is an equidigital number, since it uses as much as digits as its factorization.

72374843 is an evil number, because the sum of its binary digits is even.

The product of its digits is 112896, while the sum is 38.

The square root of 72374843 is about 8507.3405362663. The cubic root of 72374843 is about 416.7374643076.

The spelling of 72374843 in words is "seventy-two million, three hundred seventy-four thousand, eight hundred forty-three".