28737164 has 6 divisors (see below), whose sum is σ = 50290044. Its totient is φ = 14368580.

The previous prime is 28737151. The next prime is 28737167. The reversal of 28737164 is 46173782.

It is not an unprimeable number, because it can be changed into a prime (28737167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3592142 + ... + 3592149.

It is an arithmetic number, because the mean of its divisors is an integer number (8381674).

Almost surely, 2^28737164 is an apocalyptic number.

It is an amenable number.

28737164 is a deficient number, since it is larger than the sum of its proper divisors (21552880).

28737164 is a wasteful number, since it uses less digits than its factorization.

28737164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7184295 (or 7184293 counting only the distinct ones).

The product of its digits is 56448, while the sum is 38.

The square root of 28737164 is about 5360.7055505782. The cubic root of 28737164 is about 306.3006855440.

The spelling of 28737164 in words is "twenty-eight million, seven hundred thirty-seven thousand, one hundred sixty-four".