690060361 has 9 divisors (see below), whose sum is σ = 699351093. Its totient is φ = 680892480.

The previous prime is 690060353. The next prime is 690060367. The reversal of 690060361 is 163060096.

The square root of 690060361 is 26269.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 139688761 + 550371600 = 11819^2 + 23460^2 .

It is not a de Polignac number, because 690060361 - 2³ = 690060353 is a prime.

It is a Duffinian number.

690060361 is a Rhonda number in base 12.

It is not an unprimeable number, because it can be changed into a prime (690060367) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 2863201 + ... + 2863441.

It is an arithmetic number, because the mean of its divisors is an integer number (77705677).

Almost surely, 2^690060361 is an apocalyptic number.

690060361 is the 26269-th square number.

690060361 is the 13135-th centered octagonal number.

It is an amenable number.

690060361 is a deficient number, since it is larger than the sum of its proper divisors (9290732).

690060361 is an frugal number, since it uses more digits than its factorization.

690060361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 700 (or 350 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 31.

The cubic root of 690060361 is about 883.6813588007.

The spelling of 690060361 in words is "six hundred ninety million, sixty thousand, three hundred sixty-one".