7434770621 has 2 divisors, whose sum is σ = 7434770622. Its totient is φ = 7434770620.

The previous prime is 7434770597. The next prime is 7434770647. The reversal of 7434770621 is 1260774347.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5014622596 + 2420148025 = 70814^2 + 49195^2 .

It is a cyclic number.

It is not a de Polignac number, because 7434770621 - 2⁶ = 7434770557 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7434770221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3717385310 + 3717385311.

It is an arithmetic number, because the mean of its divisors is an integer number (3717385311).

Almost surely, 2^7434770621 is an apocalyptic number.

It is an amenable number.

7434770621 is a deficient number, since it is larger than the sum of its proper divisors (1).

7434770621 is an equidigital number, since it uses as much as digits as its factorization.

7434770621 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 197568, while the sum is 41.

The square root of 7434770621 is about 86225.1159523720. The cubic root of 7434770621 is about 1951.7425249011.

The spelling of 7434770621 in words is "seven billion, four hundred thirty-four million, seven hundred seventy thousand, six hundred twenty-one".