28205962 has 4 divisors (see below), whose sum is σ = 42308946. Its totient is φ = 14102980.

The previous prime is 28205921. The next prime is 28205963. The reversal of 28205962 is 26950282.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 27468081 + 737881 = 5241^2 + 859^2 .

It is not an unprimeable number, because it can be changed into a prime (28205963) 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 as a sum of consecutive naturals, namely, 7051489 + ... + 7051492.

Almost surely, 2^28205962 is an apocalyptic number.

28205962 is a deficient number, since it is larger than the sum of its proper divisors (14102984).

28205962 is a wasteful number, since it uses less digits than its factorization.

28205962 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14102983.

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 28205962 is about 5310.9285440495. The cubic root of 28205962 is about 304.4016289543.

The spelling of 28205962 in words is "twenty-eight million, two hundred five thousand, nine hundred sixty-two".