697947 has 8 divisors (see below), whose sum is σ = 942144. Its totient is φ = 459528.

The previous prime is 697937. The next prime is 697951. The reversal of 697947 is 749796.

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

It is not a de Polignac number, because 697947 - 2⁷ = 697819 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 697899 and 697908.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 697947.

It is not an unprimeable number, because it can be changed into a prime (697937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1153 + ... + 1650.

It is an arithmetic number, because the mean of its divisors is an integer number (117768).

2⁶⁹⁷⁹⁴⁷ is an apocalyptic number.

697947 is a deficient number, since it is larger than the sum of its proper divisors (244197).

697947 is a wasteful number, since it uses less digits than its factorization.

697947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2889.

The product of its digits is 95256, while the sum is 42.

The square root of 697947 is about 835.4322234628. The cubic root of 697947 is about 88.7035119888.

The spelling of 697947 in words is "six hundred ninety-seven thousand, nine hundred forty-seven".