7164233621 has 2 divisors, whose sum is σ = 7164233622. Its totient is φ = 7164233620.

The previous prime is 7164233597. The next prime is 7164233639. The reversal of 7164233621 is 1263324617.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6858158596 + 306075025 = 82814^2 + 17495^2 .

It is a cyclic number.

It is not a de Polignac number, because 7164233621 - 2²² = 7160039317 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7164238621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3582116810 + 3582116811.

It is an arithmetic number, because the mean of its divisors is an integer number (3582116811).

Almost surely, 2^7164233621 is an apocalyptic number.

It is an amenable number.

7164233621 is a deficient number, since it is larger than the sum of its proper divisors (1).

7164233621 is an equidigital number, since it uses as much as digits as its factorization.

7164233621 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36288, while the sum is 35.

The square root of 7164233621 is about 84641.7959462109. The cubic root of 7164233621 is about 1927.7760472189.

The spelling of 7164233621 in words is "seven billion, one hundred sixty-four million, two hundred thirty-three thousand, six hundred twenty-one".