7420731943 has 2 divisors, whose sum is σ = 7420731944. Its totient is φ = 7420731942.

The previous prime is 7420731889. The next prime is 7420731959. The reversal of 7420731943 is 3491370247.

It is a strong prime.

It is an emirp because it is prime and its reverse (3491370247) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7420731943 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7420731896 and 7420731905.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7420731343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3710365971 + 3710365972.

It is an arithmetic number, because the mean of its divisors is an integer number (3710365972).

Almost surely, 2^7420731943 is an apocalyptic number.

7420731943 is a deficient number, since it is larger than the sum of its proper divisors (1).

7420731943 is an equidigital number, since it uses as much as digits as its factorization.

7420731943 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 127008, while the sum is 40.

The square root of 7420731943 is about 86143.6703594640. The cubic root of 7420731943 is about 1950.5132940224.

The spelling of 7420731943 in words is "seven billion, four hundred twenty million, seven hundred thirty-one thousand, nine hundred forty-three".