869902673 has 2 divisors, whose sum is σ = 869902674. Its totient is φ = 869902672.

The previous prime is 869902661. The next prime is 869902679. The reversal of 869902673 is 376209968.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 869778064 + 124609 = 29492^2 + 353^2 .

It is a cyclic number.

It is not a de Polignac number, because 869902673 - 2⁶ = 869902609 is a prime.

It is not a weakly prime, because it can be changed into another prime (869902679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 434951336 + 434951337.

It is an arithmetic number, because the mean of its divisors is an integer number (434951337).

Almost surely, 2^869902673 is an apocalyptic number.

It is an amenable number.

869902673 is a deficient number, since it is larger than the sum of its proper divisors (1).

869902673 is an equidigital number, since it uses as much as digits as its factorization.

869902673 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 979776, while the sum is 50.

The square root of 869902673 is about 29494.1125141951. The cubic root of 869902673 is about 954.6046710362.

The spelling of 869902673 in words is "eight hundred sixty-nine million, nine hundred two thousand, six hundred seventy-three".