928454491 has 4 divisors (see below), whose sum is σ = 929814552. Its totient is φ = 927094432.

The previous prime is 928454489. The next prime is 928454537. The reversal of 928454491 is 194454829.

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

It is a cyclic number.

It is not a de Polignac number, because 928454491 - 2¹ = 928454489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (928454441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 679006 + ... + 680371.

It is an arithmetic number, because the mean of its divisors is an integer number (232453638).

Almost surely, 2^928454491 is an apocalyptic number.

928454491 is a deficient number, since it is larger than the sum of its proper divisors (1360061).

928454491 is a wasteful number, since it uses less digits than its factorization.

928454491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1360060.

The product of its digits is 414720, while the sum is 46.

The square root of 928454491 is about 30470.5512093234. The cubic root of 928454491 is about 975.5590012936.

It can be divided in two parts, 92845 and 4491, that added together give a cube (97336 = 46³).

The spelling of 928454491 in words is "nine hundred twenty-eight million, four hundred fifty-four thousand, four hundred ninety-one".