28799948 has 12 divisors (see below), whose sum is σ = 50899632. Its totient is φ = 14257200.

The previous prime is 28799941. The next prime is 28799951. The reversal of 28799948 is 84999782.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 28799893 and 28799902.

It is not an unprimeable number, because it can be changed into a prime (28799941) 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, 35240 + ... + 36047.

It is an arithmetic number, because the mean of its divisors is an integer number (4241636).

Almost surely, 2^28799948 is an apocalyptic number.

It is an amenable number.

28799948 is a deficient number, since it is larger than the sum of its proper divisors (22099684).

28799948 is a wasteful number, since it uses less digits than its factorization.

28799948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71392 (or 71390 counting only the distinct ones).

The product of its digits is 2612736, while the sum is 56.

The square root of 28799948 is about 5366.5583011834. The cubic root of 28799948 is about 306.5235884754.

The spelling of 28799948 in words is "twenty-eight million, seven hundred ninety-nine thousand, nine hundred forty-eight".