28605392 has 10 divisors (see below), whose sum is σ = 55422978. Its totient is φ = 14302688.

The previous prime is 28605391. The next prime is 28605427. The reversal of 28605392 is 29350682.

It can be written as a sum of positive squares in only one way, i.e., 28472896 + 132496 = 5336^2 + 364^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28605391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 893903 + ... + 893934.

Almost surely, 2^28605392 is an apocalyptic number.

It is an amenable number.

28605392 is a deficient number, since it is larger than the sum of its proper divisors (26817586).

28605392 is a wasteful number, since it uses less digits than its factorization.

28605392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1787845 (or 1787839 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 28605392 is about 5348.4008825068. The cubic root of 28605392 is about 305.8317955773.

The spelling of 28605392 in words is "twenty-eight million, six hundred five thousand, three hundred ninety-two".