28861052 has 24 divisors (see below), whose sum is σ = 56006832. Its totient is φ = 12902400.

The previous prime is 28861051. The next prime is 28861103. The reversal of 28861052 is 25016882.

It is a super-3 number, since 3×28861052³ (a number of 23 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28861051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2693 + ... + 8060.

It is an arithmetic number, because the mean of its divisors is an integer number (2333618).

Almost surely, 2^28861052 is an apocalyptic number.

28861052 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

28861052 is a deficient number, since it is larger than the sum of its proper divisors (27145780).

28861052 is a wasteful number, since it uses less digits than its factorization.

28861052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10829 (or 10827 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 32.

The square root of 28861052 is about 5372.2483189071. The cubic root of 28861052 is about 306.7402160283.

The spelling of 28861052 in words is "twenty-eight million, eight hundred sixty-one thousand, fifty-two".