7243406437 has 2 divisors, whose sum is σ = 7243406438. Its totient is φ = 7243406436.

The previous prime is 7243406419. The next prime is 7243406441. The reversal of 7243406437 is 7346043427.

7243406437 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5523313761 + 1720092676 = 74319^2 + 41474^2 .

It is a cyclic number.

It is not a de Polignac number, because 7243406437 - 2¹⁹ = 7242882149 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7243406437.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7243406447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3621703218 + 3621703219.

It is an arithmetic number, because the mean of its divisors is an integer number (3621703219).

Almost surely, 2^7243406437 is an apocalyptic number.

It is an amenable number.

7243406437 is a deficient number, since it is larger than the sum of its proper divisors (1).

7243406437 is an equidigital number, since it uses as much as digits as its factorization.

7243406437 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 338688, while the sum is 40.

The square root of 7243406437 is about 85108.2042872484. The cubic root of 7243406437 is about 1934.8514097340.

The spelling of 7243406437 in words is "seven billion, two hundred forty-three million, four hundred six thousand, four hundred thirty-seven".