69899897 has 8 divisors (see below), whose sum is σ = 72077280. Its totient is φ = 67747680.

The previous prime is 69899833. The next prime is 69899899. The reversal of 69899897 is 79899896.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 69899897 - 2⁶ = 69899833 is a prime.

It is a super-2 number, since 2×69899897² = 9771991201221218, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (69899899) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 572 + ... + 11837.

It is an arithmetic number, because the mean of its divisors is an integer number (9009660).

Almost surely, 2^69899897 is an apocalyptic number.

It is an amenable number.

69899897 is a deficient number, since it is larger than the sum of its proper divisors (2177383).

69899897 is a wasteful number, since it uses less digits than its factorization.

69899897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12583.

The product of its digits is 17635968, while the sum is 65.

The square root of 69899897 is about 8360.6158266003. The cubic root of 69899897 is about 411.9319824404.

Subtracting 69899897 from its reverse (79899896), we obtain a palindrome (9999999).

The spelling of 69899897 in words is "sixty-nine million, eight hundred ninety-nine thousand, eight hundred ninety-seven".