28952767 has 4 divisors (see below), whose sum is σ = 28993000. Its totient is φ = 28912536.

The previous prime is 28952753. The next prime is 28952771. The reversal of 28952767 is 76725982.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 76725982 = 2 ⋅38362991.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28952767 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28952267) 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, 19017 + ... + 20482.

It is an arithmetic number, because the mean of its divisors is an integer number (7248250).

Almost surely, 2^28952767 is an apocalyptic number.

28952767 is a deficient number, since it is larger than the sum of its proper divisors (40233).

28952767 is an equidigital number, since it uses as much as digits as its factorization.

28952767 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40232.

The product of its digits is 423360, while the sum is 46.

The square root of 28952767 is about 5380.7775460430. Note that the first 3 decimals coincide. The cubic root of 28952767 is about 307.0647933778.

The spelling of 28952767 in words is "twenty-eight million, nine hundred fifty-two thousand, seven hundred sixty-seven".