28739468 has 6 divisors (see below), whose sum is σ = 50294076. Its totient is φ = 14369732.

The previous prime is 28739467. The next prime is 28739471. The reversal of 28739468 is 86493782.

It is not an unprimeable number, because it can be changed into a prime (28739467) 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, 3592430 + ... + 3592437.

It is an arithmetic number, because the mean of its divisors is an integer number (8382346).

Almost surely, 2^28739468 is an apocalyptic number.

It is an amenable number.

28739468 is a deficient number, since it is larger than the sum of its proper divisors (21554608).

28739468 is a wasteful number, since it uses less digits than its factorization.

28739468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7184871 (or 7184869 counting only the distinct ones).

The product of its digits is 580608, while the sum is 47.

The square root of 28739468 is about 5360.9204433567. The cubic root of 28739468 is about 306.3088712035.

The spelling of 28739468 in words is "twenty-eight million, seven hundred thirty-nine thousand, four hundred sixty-eight".