691314473 has 8 divisors (see below), whose sum is σ = 728377728. Its totient is φ = 654835104.

The previous prime is 691314461. The next prime is 691314497. The reversal of 691314473 is 374413196.

691314473 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 691314473 - 2²² = 687120169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (691313473) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 143540 + ... + 148277.

It is an arithmetic number, because the mean of its divisors is an integer number (91047216).

Almost surely, 2^691314473 is an apocalyptic number.

It is an amenable number.

691314473 is a deficient number, since it is larger than the sum of its proper divisors (37063255).

691314473 is a wasteful number, since it uses less digits than its factorization.

691314473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291943.

The product of its digits is 54432, while the sum is 38.

The square root of 691314473 is about 26292.8597341560. The cubic root of 691314473 is about 884.2163674120.

The spelling of 691314473 in words is "six hundred ninety-one million, three hundred fourteen thousand, four hundred seventy-three".