11897029 has 4 divisors (see below), whose sum is σ = 12060076. Its totient is φ = 11733984.

The previous prime is 11896999. The next prime is 11897051. The reversal of 11897029 is 92079811.

11897029 = T₂₁₄ + T₂₁₅ + ... + T₄₃₂.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9641025 + 2256004 = 3105^2 + 1502^2 .

It is a cyclic number.

It is not a de Polignac number, because 11897029 - 2⁹ = 11896517 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11897329) 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 3 ways as a sum of consecutive naturals, for example, 81414 + ... + 81559.

It is an arithmetic number, because the mean of its divisors is an integer number (3015019).

Almost surely, 2^11897029 is an apocalyptic number.

It is an amenable number.

11897029 is a deficient number, since it is larger than the sum of its proper divisors (163047).

11897029 is an equidigital number, since it uses as much as digits as its factorization.

11897029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163046.

The product of its (nonzero) digits is 9072, while the sum is 37.

The square root of 11897029 is about 3449.2070103141. The cubic root of 11897029 is about 228.2861199675.

The spelling of 11897029 in words is "eleven million, eight hundred ninety-seven thousand, twenty-nine".