953213857 has 2 divisors, whose sum is σ = 953213858. Its totient is φ = 953213856.

The previous prime is 953213839. The next prime is 953213893. The reversal of 953213857 is 758312359.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 869601121 + 83612736 = 29489^2 + 9144^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-953213857 is a prime.

It is not a weakly prime, because it can be changed into another prime (953213827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 476606928 + 476606929.

It is an arithmetic number, because the mean of its divisors is an integer number (476606929).

Almost surely, 2^953213857 is an apocalyptic number.

It is an amenable number.

953213857 is a deficient number, since it is larger than the sum of its proper divisors (1).

953213857 is an equidigital number, since it uses as much as digits as its factorization.

953213857 is an evil number, because the sum of its binary digits is even.

The product of its digits is 226800, while the sum is 43.

The square root of 953213857 is about 30874.1616404397. The cubic root of 953213857 is about 984.1548771492.

The spelling of 953213857 in words is "nine hundred fifty-three million, two hundred thirteen thousand, eight hundred fifty-seven".