690973 has 8 divisors (see below), whose sum is σ = 745920. Its totient is φ = 637920.

The previous prime is 690953. The next prime is 690997. The reversal of 690973 is 379096.

690973 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 690973 - 2¹⁷ = 559901 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (690953) 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, 336 + ... + 1222.

It is an arithmetic number, because the mean of its divisors is an integer number (93240).

2⁶⁹⁰⁹⁷³ is an apocalyptic number.

It is an amenable number.

690973 is a deficient number, since it is larger than the sum of its proper divisors (54947).

690973 is a wasteful number, since it uses less digits than its factorization.

690973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 947.

The product of its (nonzero) digits is 10206, while the sum is 34.

The square root of 690973 is about 831.2478571401. The cubic root of 690973 is about 88.4070757971.

The spelling of 690973 in words is "six hundred ninety thousand, nine hundred seventy-three".