690364229 has 8 divisors (see below), whose sum is σ = 699514200. Its totient is φ = 681255936.

The previous prime is 690364223. The next prime is 690364231. The reversal of 690364229 is 922463096.

It can be written as a sum of positive squares in 4 ways, for example, as 163891204 + 526473025 = 12802^2 + 22945^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-690364229 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 (690364223) 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, 23657 + ... + 44049.

It is an arithmetic number, because the mean of its divisors is an integer number (87439275).

Almost surely, 2^690364229 is an apocalyptic number.

It is an amenable number.

690364229 is a deficient number, since it is larger than the sum of its proper divisors (9149971).

690364229 is a wasteful number, since it uses less digits than its factorization.

690364229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20839.

The product of its (nonzero) digits is 139968, while the sum is 41.

The square root of 690364229 is about 26274.7831389719. The cubic root of 690364229 is about 883.8110494275.

The spelling of 690364229 in words is "six hundred ninety million, three hundred sixty-four thousand, two hundred twenty-nine".