797155453 has 2 divisors, whose sum is σ = 797155454. Its totient is φ = 797155452.

The previous prime is 797155441. The next prime is 797155493. The reversal of 797155453 is 354551797.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 731269764 + 65885689 = 27042^2 + 8117^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-797155453 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (797155423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 398577726 + 398577727.

It is an arithmetic number, because the mean of its divisors is an integer number (398577727).

Almost surely, 2^797155453 is an apocalyptic number.

It is an amenable number.

797155453 is a deficient number, since it is larger than the sum of its proper divisors (1).

797155453 is an equidigital number, since it uses as much as digits as its factorization.

797155453 is an evil number, because the sum of its binary digits is even.

The product of its digits is 661500, while the sum is 46.

The square root of 797155453 is about 28233.9415066335. The cubic root of 797155453 is about 927.2161919392.

The spelling of 797155453 in words is "seven hundred ninety-seven million, one hundred fifty-five thousand, four hundred fifty-three".