690519941 has 2 divisors, whose sum is σ = 690519942. Its totient is φ = 690519940.

The previous prime is 690519919. The next prime is 690519971. The reversal of 690519941 is 149915096.

690519941 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 572884225 + 117635716 = 23935^2 + 10846^2 .

It is a cyclic number.

It is not a de Polignac number, because 690519941 - 2²⁶ = 623411077 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 690519892 and 690519901.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (690519901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 345259970 + 345259971.

It is an arithmetic number, because the mean of its divisors is an integer number (345259971).

Almost surely, 2^690519941 is an apocalyptic number.

It is an amenable number.

690519941 is a deficient number, since it is larger than the sum of its proper divisors (1).

690519941 is an equidigital number, since it uses as much as digits as its factorization.

690519941 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 87480, while the sum is 44.

The square root of 690519941 is about 26277.7461171996. The cubic root of 690519941 is about 883.8774924416.

The spelling of 690519941 in words is "six hundred ninety million, five hundred nineteen thousand, nine hundred forty-one".