69981297 has 8 divisors (see below), whose sum is σ = 93824640. Its totient is φ = 46396080.

The previous prime is 69981271. The next prime is 69981343. The reversal of 69981297 is 79218996.

It is a happy number.

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

It is not a de Polignac number, because 69981297 - 2¹¹ = 69979249 is a prime.

It is not an unprimeable number, because it can be changed into a prime (69981217) 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, 63897 + ... + 64982.

It is an arithmetic number, because the mean of its divisors is an integer number (11728080).

Almost surely, 2^69981297 is an apocalyptic number.

It is an amenable number.

69981297 is a deficient number, since it is larger than the sum of its proper divisors (23843343).

69981297 is a wasteful number, since it uses less digits than its factorization.

69981297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129063.

The product of its digits is 489888, while the sum is 51.

The square root of 69981297 is about 8365.4824726372. The cubic root of 69981297 is about 412.0918217595.

The spelling of 69981297 in words is "sixty-nine million, nine hundred eighty-one thousand, two hundred ninety-seven".