690019037 has 2 divisors, whose sum is σ = 690019038. Its totient is φ = 690019036.

The previous prime is 690019013. The next prime is 690019039. The reversal of 690019037 is 730910096.

690019037 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 689902756 + 116281 = 26266^2 + 341^2 .

It is a cyclic number.

It is not a de Polignac number, because 690019037 - 2⁸ = 690018781 is a prime.

It is a super-2 number, since 2×690019037² = 952252542844814738, which contains 22 as substring.

Together with 690019039, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 690018988 and 690019006.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (690019039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 345009518 + 345009519.

It is an arithmetic number, because the mean of its divisors is an integer number (345009519).

Almost surely, 2^690019037 is an apocalyptic number.

It is an amenable number.

690019037 is a deficient number, since it is larger than the sum of its proper divisors (1).

690019037 is an equidigital number, since it uses as much as digits as its factorization.

690019037 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10206, while the sum is 35.

The square root of 690019037 is about 26268.2134337301. The cubic root of 690019037 is about 883.6637188089.

The spelling of 690019037 in words is "six hundred ninety million, nineteen thousand, thirty-seven".