69449797 has 2 divisors, whose sum is σ = 69449798. Its totient is φ = 69449796.

The previous prime is 69449771. The next prime is 69449801. The reversal of 69449797 is 79794496.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 69205761 + 244036 = 8319^2 + 494^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-69449797 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (69449767) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34724898 + 34724899.

It is an arithmetic number, because the mean of its divisors is an integer number (34724899).

Almost surely, 2^69449797 is an apocalyptic number.

It is an amenable number.

69449797 is a deficient number, since it is larger than the sum of its proper divisors (1).

69449797 is an equidigital number, since it uses as much as digits as its factorization.

69449797 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3429216, while the sum is 55.

The square root of 69449797 is about 8333.6544804785. The cubic root of 69449797 is about 411.0459058801.

The spelling of 69449797 in words is "sixty-nine million, four hundred forty-nine thousand, seven hundred ninety-seven".