869502401 has 2 divisors, whose sum is σ = 869502402. Its totient is φ = 869502400.

The previous prime is 869502391. The next prime is 869502433. The reversal of 869502401 is 104205968.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 724901776 + 144600625 = 26924^2 + 12025^2 .

It is a cyclic number.

It is not a de Polignac number, because 869502401 - 2¹⁰ = 869501377 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is equal to p_44529632 and since 869502401 and 44529632 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (869502481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 434751200 + 434751201.

It is an arithmetic number, because the mean of its divisors is an integer number (434751201).

Almost surely, 2^869502401 is an apocalyptic number.

It is an amenable number.

869502401 is a deficient number, since it is larger than the sum of its proper divisors (1).

869502401 is an equidigital number, since it uses as much as digits as its factorization.

869502401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 869502401 is about 29487.3261080078. The cubic root of 869502401 is about 954.4582331439.

The spelling of 869502401 in words is "eight hundred sixty-nine million, five hundred two thousand, four hundred one".