69949917 has 12 divisors (see below), whose sum is σ = 106982460. Its totient is φ = 43890048.

The previous prime is 69949909. The next prime is 69949921. The reversal of 69949917 is 71994996.

It can be written as a sum of positive squares in 2 ways, for example, as 45239076 + 24710841 = 6726^2 + 4971^2 .

It is not a de Polignac number, because 69949917 - 2³ = 69949909 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69949927) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 228442 + ... + 228747.

It is an arithmetic number, because the mean of its divisors is an integer number (8915205).

Almost surely, 2^69949917 is an apocalyptic number.

It is an amenable number.

69949917 is a deficient number, since it is larger than the sum of its proper divisors (37032543).

69949917 is a wasteful number, since it uses less digits than its factorization.

69949917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 457212 (or 457209 counting only the distinct ones).

The product of its digits is 1102248, while the sum is 54.

The square root of 69949917 is about 8363.6066980699. The cubic root of 69949917 is about 412.0302178012.

The spelling of 69949917 in words is "sixty-nine million, nine hundred forty-nine thousand, nine hundred seventeen".