7345982621 has 2 divisors, whose sum is σ = 7345982622. Its totient is φ = 7345982620.

The previous prime is 7345982617. The next prime is 7345982629. The reversal of 7345982621 is 1262895437.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5345656996 + 2000325625 = 73114^2 + 44725^2 .

It is an emirp because it is prime and its reverse (1262895437) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7345982621 - 2² = 7345982617 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7345982629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3672991310 + 3672991311.

It is an arithmetic number, because the mean of its divisors is an integer number (3672991311).

Almost surely, 2^7345982621 is an apocalyptic number.

It is an amenable number.

7345982621 is a deficient number, since it is larger than the sum of its proper divisors (1).

7345982621 is an equidigital number, since it uses as much as digits as its factorization.

7345982621 is an evil number, because the sum of its binary digits is even.

The product of its digits is 725760, while the sum is 47.

The square root of 7345982621 is about 85708.7079648270. The cubic root of 7345982621 is about 1943.9419812155.

The spelling of 7345982621 in words is "seven billion, three hundred forty-five million, nine hundred eighty-two thousand, six hundred twenty-one".