7391453989 has 2 divisors, whose sum is σ = 7391453990. Its totient is φ = 7391453988.

The previous prime is 7391453983. The next prime is 7391454001. The reversal of 7391453989 is 9893541937.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7390840900 + 613089 = 85970^2 + 783^2 .

It is an emirp because it is prime and its reverse (9893541937) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7391453989 - 2¹¹ = 7391451941 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7391453983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3695726994 + 3695726995.

It is an arithmetic number, because the mean of its divisors is an integer number (3695726995).

Almost surely, 2^7391453989 is an apocalyptic number.

It is an amenable number.

7391453989 is a deficient number, since it is larger than the sum of its proper divisors (1).

7391453989 is an equidigital number, since it uses as much as digits as its factorization.

7391453989 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7348320, while the sum is 58.

The square root of 7391453989 is about 85973.5656408410. The cubic root of 7391453989 is about 1947.9447105875.

The spelling of 7391453989 in words is "seven billion, three hundred ninety-one million, four hundred fifty-three thousand, nine hundred eighty-nine".