699564101 has 2 divisors, whose sum is σ = 699564102. Its totient is φ = 699564100.

The previous prime is 699564091. The next prime is 699564137. The reversal of 699564101 is 101465996.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 696907201 + 2656900 = 26399^2 + 1630^2 .

It is a cyclic number.

It is not a de Polignac number, because 699564101 - 2¹⁸ = 699301957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (699564191) 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, 349782050 + 349782051.

It is an arithmetic number, because the mean of its divisors is an integer number (349782051).

Almost surely, 2^699564101 is an apocalyptic number.

It is an amenable number.

699564101 is a deficient number, since it is larger than the sum of its proper divisors (1).

699564101 is an equidigital number, since it uses as much as digits as its factorization.

699564101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 58320, while the sum is 41.

The square root of 699564101 is about 26449.2741110224. The cubic root of 699564101 is about 887.7196603941.

The spelling of 699564101 in words is "six hundred ninety-nine million, five hundred sixty-four thousand, one hundred one".