28922658 has 8 divisors (see below), whose sum is σ = 57845328. Its totient is φ = 9640884.

The previous prime is 28922653. The next prime is 28922681. The reversal of 28922658 is 85622982.

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

28922658 is an admirable number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (28922653) 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, 2410216 + ... + 2410227.

It is an arithmetic number, because the mean of its divisors is an integer number (7230666).

Almost surely, 2^28922658 is an apocalyptic number.

28922658 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28922658 is a wasteful number, since it uses less digits than its factorization.

28922658 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4820448.

The product of its digits is 138240, while the sum is 42.

The square root of 28922658 is about 5377.9789884305. The cubic root of 28922658 is about 306.9583139684.

The spelling of 28922658 in words is "twenty-eight million, nine hundred twenty-two thousand, six hundred fifty-eight".