17949069 has 6 divisors (see below), whose sum is σ = 25926446. Its totient is φ = 11966040.

The previous prime is 17949049. The next prime is 17949077. The reversal of 17949069 is 96094971.

It can be written as a sum of positive squares in only one way, i.e., 17892900 + 56169 = 4230^2 + 237^2 .

It is not a de Polignac number, because 17949069 - 2⁸ = 17948813 is a prime.

It is a super-2 number, since 2×17949069² = 644338155933522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (17949049) 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 in 5 ways as a sum of consecutive naturals, for example, 997162 + ... + 997179.

Almost surely, 2^17949069 is an apocalyptic number.

It is an amenable number.

17949069 is a deficient number, since it is larger than the sum of its proper divisors (7977377).

17949069 is a wasteful number, since it uses less digits than its factorization.

17949069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1994347 (or 1994344 counting only the distinct ones).

The product of its (nonzero) digits is 122472, while the sum is 45.

The square root of 17949069 is about 4236.6341593298. The cubic root of 17949069 is about 261.8267263297.

The spelling of 17949069 in words is "seventeen million, nine hundred forty-nine thousand, sixty-nine".