693091 has 4 divisors (see below), whose sum is σ = 792112. Its totient is φ = 594072.

The previous prime is 693089. The next prime is 693097. The reversal of 693091 is 190396.

It is a happy number.

693091 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 693091 - 2¹ = 693089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (693097) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49500 + ... + 49513.

It is an arithmetic number, because the mean of its divisors is an integer number (198028).

2⁶⁹³⁰⁹¹ is an apocalyptic number.

693091 is a deficient number, since it is larger than the sum of its proper divisors (99021).

693091 is an equidigital number, since it uses as much as digits as its factorization.

693091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99020.

The product of its (nonzero) digits is 1458, while the sum is 28.

The square root of 693091 is about 832.5208706093. The cubic root of 693091 is about 88.4973133767.

It can be divided in two parts, 6930 and 91, that added together give a triangular number (7021 = T₁₁₈).

The spelling of 693091 in words is "six hundred ninety-three thousand, ninety-one".