690419 has 2 divisors, whose sum is σ = 690420. Its totient is φ = 690418.

The previous prime is 690407. The next prime is 690427. The reversal of 690419 is 914096.

690419 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 is a cyclic number.

It is not a de Polignac number, because 690419 - 2⁸ = 690163 is a prime.

It is a super-2 number, since 2×690419² = 953356791122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 690391 and 690400.

It is not a weakly prime, because it can be changed into another prime (690439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 345209 + 345210.

It is an arithmetic number, because the mean of its divisors is an integer number (345210).

2⁶⁹⁰⁴¹⁹ is an apocalyptic number.

690419 is a deficient number, since it is larger than the sum of its proper divisors (1).

690419 is an equidigital number, since it uses as much as digits as its factorization.

690419 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944, while the sum is 29.

The square root of 690419 is about 830.9145563775. The cubic root of 690419 is about 88.3834421600.

The spelling of 690419 in words is "six hundred ninety thousand, four hundred nineteen".