684071454 has 16 divisors (see below), whose sum is σ = 1492519680. Its totient is φ = 207294360.

The previous prime is 684071419. The next prime is 684071471. The reversal of 684071454 is 454170486.

It is a congruent number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 5182294 + ... + 5182425.

It is an arithmetic number, because the mean of its divisors is an integer number (93282480).

Almost surely, 2^684071454 is an apocalyptic number.

684071454 is an abundant number, since it is smaller than the sum of its proper divisors (808448226).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

684071454 is a wasteful number, since it uses less digits than its factorization.

684071454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10364735.

The product of its (nonzero) digits is 107520, while the sum is 39.

The square root of 684071454 is about 26154.7596815570. The cubic root of 684071454 is about 881.1174913082.

The spelling of 684071454 in words is "six hundred eighty-four million, seventy-one thousand, four hundred fifty-four".