791487953 has 2 divisors, whose sum is σ = 791487954. Its totient is φ = 791487952.

The previous prime is 791487919. The next prime is 791488007. The reversal of 791487953 is 359784197.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 790284544 + 1203409 = 28112^2 + 1097^2 .

It is an emirp because it is prime and its reverse (359784197) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 791487953 - 2¹⁶ = 791422417 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 791487895 and 791487904.

It is not a weakly prime, because it can be changed into another prime (791481953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 395743976 + 395743977.

It is an arithmetic number, because the mean of its divisors is an integer number (395743977).

Almost surely, 2^791487953 is an apocalyptic number.

It is an amenable number.

791487953 is a deficient number, since it is larger than the sum of its proper divisors (1).

791487953 is an equidigital number, since it uses as much as digits as its factorization.

791487953 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1905120, while the sum is 53.

The square root of 791487953 is about 28133.3956891094. The cubic root of 791487953 is about 925.0135680503.

The spelling of 791487953 in words is "seven hundred ninety-one million, four hundred eighty-seven thousand, nine hundred fifty-three".