690582313 has 4 divisors (see below), whose sum is σ = 731204820. Its totient is φ = 649959808.

The previous prime is 690582293. The next prime is 690582323. The reversal of 690582313 is 313285096.

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 213072409 + 477509904 = 14597^2 + 21852^2 .

It is a cyclic number.

It is not a de Polignac number, because 690582313 - 2¹³ = 690574121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (690582323) 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, 20311228 + ... + 20311261.

It is an arithmetic number, because the mean of its divisors is an integer number (182801205).

Almost surely, 2^690582313 is an apocalyptic number.

It is an amenable number.

690582313 is a deficient number, since it is larger than the sum of its proper divisors (40622507).

690582313 is a wasteful number, since it uses less digits than its factorization.

690582313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40622506.

The product of its (nonzero) digits is 38880, while the sum is 37.

The square root of 690582313 is about 26278.9328740723. The cubic root of 690582313 is about 883.9041040541.

The spelling of 690582313 in words is "six hundred ninety million, five hundred eighty-two thousand, three hundred thirteen".