28469161 has 8 divisors (see below), whose sum is σ = 32568704. Its totient is φ = 24377760.

The previous prime is 28469159. The next prime is 28469167. The reversal of 28469161 is 16196482.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 28469161 - 2¹ = 28469159 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 28469161.

It is not an unprimeable number, because it can be changed into a prime (28469167) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11341 + ... + 13621.

It is an arithmetic number, because the mean of its divisors is an integer number (4071088).

Almost surely, 2^28469161 is an apocalyptic number.

It is an amenable number.

28469161 is a deficient number, since it is larger than the sum of its proper divisors (4099543).

28469161 is a wasteful number, since it uses less digits than its factorization.

28469161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4071.

The product of its digits is 20736, while the sum is 37.

The square root of 28469161 is about 5335.6500072625. The cubic root of 28469161 is about 305.3455226039.

The spelling of 28469161 in words is "twenty-eight million, four hundred sixty-nine thousand, one hundred sixty-one".