28669461 has 8 divisors (see below), whose sum is σ = 40237920. Its totient is φ = 18106992.

The previous prime is 28669453. The next prime is 28669493. The reversal of 28669461 is 16496682.

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

It is not a de Polignac number, because 28669461 - 2³ = 28669453 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28669061) 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, 251430 + ... + 251543.

It is an arithmetic number, because the mean of its divisors is an integer number (5029740).

Almost surely, 2^28669461 is an apocalyptic number.

It is an amenable number.

28669461 is a deficient number, since it is larger than the sum of its proper divisors (11568459).

28669461 is a wasteful number, since it uses less digits than its factorization.

28669461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 502995.

The product of its digits is 124416, while the sum is 42.

The square root of 28669461 is about 5354.3870797693. The cubic root of 28669461 is about 306.0599545047.

The spelling of 28669461 in words is "twenty-eight million, six hundred sixty-nine thousand, four hundred sixty-one".