28692646 has 4 divisors (see below), whose sum is σ = 43038972. Its totient is φ = 14346322.

The previous prime is 28692619. The next prime is 28692647. The reversal of 28692646 is 64629682.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28692647) 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, 7173160 + ... + 7173163.

It is an arithmetic number, because the mean of its divisors is an integer number (10759743).

Almost surely, 2^28692646 is an apocalyptic number.

28692646 is a deficient number, since it is larger than the sum of its proper divisors (14346326).

28692646 is a wasteful number, since it uses less digits than its factorization.

28692646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14346325.

The product of its digits is 248832, while the sum is 43.

The square root of 28692646 is about 5356.5516892867. The cubic root of 28692646 is about 306.1424358607.

The spelling of 28692646 in words is "twenty-eight million, six hundred ninety-two thousand, six hundred forty-six".