8721454 has 16 divisors (see below), whose sum is σ = 14990976. Its totient is φ = 3727800.

The previous prime is 8721443. The next prime is 8721467. The reversal of 8721454 is 4541278.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7449 + ... + 8539.

It is an arithmetic number, because the mean of its divisors is an integer number (936936).

Almost surely, 2^8721454 is an apocalyptic number.

8721454 is a deficient number, since it is larger than the sum of its proper divisors (6269522).

8721454 is a wasteful number, since it uses less digits than its factorization.

8721454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1671.

The product of its digits is 8960, while the sum is 31.

The square root of 8721454 is about 2953.2107950500. The cubic root of 8721454 is about 205.8399328402.

The spelling of 8721454 in words is "eight million, seven hundred twenty-one thousand, four hundred fifty-four".