69922997 has 4 divisors (see below), whose sum is σ = 69939936. Its totient is φ = 69906060.

The previous prime is 69922961. The next prime is 69923027. The reversal of 69922997 is 79922996.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-69922997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69922927) 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 3 ways as a sum of consecutive naturals, for example, 2222 + ... + 12032.

It is an arithmetic number, because the mean of its divisors is an integer number (17484984).

Almost surely, 2^69922997 is an apocalyptic number.

It is an amenable number.

69922997 is a deficient number, since it is larger than the sum of its proper divisors (16939).

69922997 is an equidigital number, since it uses as much as digits as its factorization.

69922997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16938.

The product of its digits is 1102248, while the sum is 53.

The square root of 69922997 is about 8361.9971896671. The cubic root of 69922997 is about 411.9773548524.

Subtracting 69922997 from its reverse (79922996), we obtain a palindrome (9999999).

The spelling of 69922997 in words is "sixty-nine million, nine hundred twenty-two thousand, nine hundred ninety-seven".