103949669 has 4 divisors (see below), whose sum is σ = 104037996. Its totient is φ = 103861344.

The previous prime is 103949653. The next prime is 103949683. The reversal of 103949669 is 966949301.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 966949301 = 233 ⋅4149997.

It can be written as a sum of positive squares in 2 ways, for example, as 56821444 + 47128225 = 7538^2 + 6865^2 .

It is a cyclic number.

It is not a de Polignac number, because 103949669 - 2⁴ = 103949653 is a prime.

It is a super-2 number, since 2×103949669² = 21611067370419122, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103949639) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42374 + ... + 44759.

It is an arithmetic number, because the mean of its divisors is an integer number (26009499).

Almost surely, 2^103949669 is an apocalyptic number.

It is an amenable number.

103949669 is a deficient number, since it is larger than the sum of its proper divisors (88327).

103949669 is an equidigital number, since it uses as much as digits as its factorization.

103949669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88326.

The product of its (nonzero) digits is 314928, while the sum is 47.

The square root of 103949669 is about 10195.5710482542. The cubic root of 103949669 is about 470.1910631067.

The spelling of 103949669 in words is "one hundred three million, nine hundred forty-nine thousand, six hundred sixty-nine".