690692304241 has 81 divisors (see below), whose sum is σ = 809901614763. Its totient is φ = 588802849920.

The previous prime is 690692304229. The next prime is 690692304251. The reversal of 690692304241 is 142403296096.

The square root of 690692304241 is 831079.

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

It can be written as a sum of positive squares in only one way, i.e., 537736223025 + 152956081216 = 733305^2 + 391096^2 .

It is not a de Polignac number, because 690692304241 - 2¹⁷ = 690692173169 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 690692304191 and 690692304200.

It is not an unprimeable number, because it can be changed into a prime (690692304221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 8321593986 + ... + 8321594068.

Almost surely, 2^690692304241 is an apocalyptic number.

690692304241 is the 831079-th square number.

690692304241 is the 415540-th centered octagonal number.

It is an amenable number.

690692304241 is a deficient number, since it is larger than the sum of its proper divisors (119209310522).

690692304241 is an equidigital number, since it uses as much as digits as its factorization.

690692304241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 300 (or 150 counting only the distinct ones).

The product of its (nonzero) digits is 559872, while the sum is 46.

The spelling of 690692304241 in words is "six hundred ninety billion, six hundred ninety-two million, three hundred four thousand, two hundred forty-one".