69634949 has 2 divisors, whose sum is σ = 69634950. Its totient is φ = 69634948.

The previous prime is 69634937. The next prime is 69634963. The reversal of 69634949 is 94943696.

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., 67354849 + 2280100 = 8207^2 + 1510^2 .

It is a cyclic number.

It is not a de Polignac number, because 69634949 - 2¹² = 69630853 is a prime.

It is a super-2 number, since 2×69634949² = 9698052244465202, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a junction number, because it is equal to n+sod(n) for n = 69634897 and 69634906.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (69634849) 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, 34817474 + 34817475.

It is an arithmetic number, because the mean of its divisors is an integer number (34817475).

Almost surely, 2^69634949 is an apocalyptic number.

It is an amenable number.

69634949 is a deficient number, since it is larger than the sum of its proper divisors (1).

69634949 is an equidigital number, since it uses as much as digits as its factorization.

69634949 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1259712, while the sum is 50.

The square root of 69634949 is about 8344.7557783317. The cubic root of 69634949 is about 411.4108622584.

The spelling of 69634949 in words is "sixty-nine million, six hundred thirty-four thousand, nine hundred forty-nine".