28948773 has 32 divisors (see below), whose sum is σ = 47139840. Its totient is φ = 15425280.

The previous prime is 28948769. The next prime is 28948781. The reversal of 28948773 is 37784982.

It is not a de Polignac number, because 28948773 - 2² = 28948769 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 (28948753) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 46458 + ... + 47076.

It is an arithmetic number, because the mean of its divisors is an integer number (1473120).

Almost surely, 2^28948773 is an apocalyptic number.

It is an amenable number.

28948773 is a deficient number, since it is larger than the sum of its proper divisors (18191067).

28948773 is a wasteful number, since it uses less digits than its factorization.

28948773 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 777.

The product of its digits is 677376, while the sum is 48.

The square root of 28948773 is about 5380.4063972901. The cubic root of 28948773 is about 307.0506729867.

The spelling of 28948773 in words is "twenty-eight million, nine hundred forty-eight thousand, seven hundred seventy-three".