69197969 has 2 divisors, whose sum is σ = 69197970. Its totient is φ = 69197968.

The previous prime is 69197927. The next prime is 69198049. The reversal of 69197969 is 96979196.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 53831569 + 15366400 = 7337^2 + 3920^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-69197969 is a prime.

It is a super-2 number, since 2×69197969² = 9576717827449922, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (69197369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34598984 + 34598985.

It is an arithmetic number, because the mean of its divisors is an integer number (34598985).

Almost surely, 2^69197969 is an apocalyptic number.

It is an amenable number.

69197969 is a deficient number, since it is larger than the sum of its proper divisors (1).

69197969 is an equidigital number, since it uses as much as digits as its factorization.

69197969 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1653372, while the sum is 56.

The square root of 69197969 is about 8318.5316612970. The cubic root of 69197969 is about 410.5484806916.

The spelling of 69197969 in words is "sixty-nine million, one hundred ninety-seven thousand, nine hundred sixty-nine".