69800869 has 2 divisors, whose sum is σ = 69800870. Its totient is φ = 69800868.

The previous prime is 69800821. The next prime is 69800873. The reversal of 69800869 is 96800896.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 69056100 + 744769 = 8310^2 + 863^2 .

It is a cyclic number.

It is not a de Polignac number, because 69800869 - 2¹³ = 69792677 is a prime.

It is a super-2 number, since 2×69800869² = 9744322626310322, which contains 22 as substring.

69800869 is a strobogrammatic number because it is the same when read upside-down.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (69800879) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34900434 + 34900435.

It is an arithmetic number, because the mean of its divisors is an integer number (34900435).

Almost surely, 2^69800869 is an apocalyptic number.

It is an amenable number.

69800869 is a deficient number, since it is larger than the sum of its proper divisors (1).

69800869 is an equidigital number, since it uses as much as digits as its factorization.

69800869 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 186624, while the sum is 46.

The square root of 69800869 is about 8354.6914365523. The cubic root of 69800869 is about 411.7373608880.

The spelling of 69800869 in words is "sixty-nine million, eight hundred thousand, eight hundred sixty-nine".