869874953 has 2 divisors, whose sum is σ = 869874954. Its totient is φ = 869874952.

The previous prime is 869874931. The next prime is 869874961. The reversal of 869874953 is 359478968.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 688380169 + 181494784 = 26237^2 + 13472^2 .

It is a cyclic number.

It is not a de Polignac number, because 869874953 - 2¹² = 869870857 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 869874892 and 869874901.

It is not a weakly prime, because it can be changed into another prime (869874913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 434937476 + 434937477.

It is an arithmetic number, because the mean of its divisors is an integer number (434937477).

Almost surely, 2^869874953 is an apocalyptic number.

It is an amenable number.

869874953 is a deficient number, since it is larger than the sum of its proper divisors (1).

869874953 is an equidigital number, since it uses as much as digits as its factorization.

869874953 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13063680, while the sum is 59.

The square root of 869874953 is about 29493.6425861574. The cubic root of 869874953 is about 954.5945312342.

The spelling of 869874953 in words is "eight hundred sixty-nine million, eight hundred seventy-four thousand, nine hundred fifty-three".