993497 has 4 divisors (see below), whose sum is σ = 1051956. Its totient is φ = 935040.

The previous prime is 993493. The next prime is 993527. The reversal of 993497 is 794399.

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

It can be written as a sum of positive squares in 2 ways, for example, as 866761 + 126736 = 931^2 + 356^2 .

It is a cyclic number.

It is not a de Polignac number, because 993497 - 2² = 993493 is a prime.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 993497.

It is not an unprimeable number, because it can be changed into a prime (993493) 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 3 ways as a sum of consecutive naturals, for example, 29204 + ... + 29237.

It is an arithmetic number, because the mean of its divisors is an integer number (262989).

2⁹⁹³⁴⁹⁷ is an apocalyptic number.

It is an amenable number.

993497 is a deficient number, since it is larger than the sum of its proper divisors (58459).

993497 is a wasteful number, since it uses less digits than its factorization.

993497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58458.

The product of its digits is 61236, while the sum is 41.

The square root of 993497 is about 996.7431966159. The cubic root of 993497 is about 99.7827617505.

It can be divided in two parts, 993 and 497, that multiplied together give a triangular number (493521 = T₉₉₃).

The spelling of 993497 in words is "nine hundred ninety-three thousand, four hundred ninety-seven".