699101997 has 32 divisors (see below), whose sum is σ = 1076115456. Its totient is φ = 399537600.

The previous prime is 699101993. The next prime is 699102011. The reversal of 699101997 is 799101996.

It is not a de Polignac number, because 699101997 - 2² = 699101993 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (699101993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 47403 + ... + 60375.

It is an arithmetic number, because the mean of its divisors is an integer number (33628608).

Almost surely, 2^699101997 is an apocalyptic number.

It is an amenable number.

699101997 is a deficient number, since it is larger than the sum of its proper divisors (377013459).

699101997 is a wasteful number, since it uses less digits than its factorization.

699101997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13081.

The product of its (nonzero) digits is 275562, while the sum is 51.

The square root of 699101997 is about 26440.5370028674. The cubic root of 699101997 is about 887.5241533333.

Subtracting 699101997 from its reverse (799101996), we obtain a palindrome (99999999).

The spelling of 699101997 in words is "six hundred ninety-nine million, one hundred one thousand, nine hundred ninety-seven".