830390069 has 2 divisors, whose sum is σ = 830390070. Its totient is φ = 830390068.

The previous prime is 830390063. The next prime is 830390153. The reversal of 830390069 is 960093038.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 466992100 + 363397969 = 21610^2 + 19063^2 .

It is a cyclic number.

It is not a de Polignac number, because 830390069 - 2⁴ = 830390053 is a prime.

It is a super-2 number, since 2×830390069² = 1379095333387649522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (830390063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 415195034 + 415195035.

It is an arithmetic number, because the mean of its divisors is an integer number (415195035).

Almost surely, 2^830390069 is an apocalyptic number.

It is an amenable number.

830390069 is a deficient number, since it is larger than the sum of its proper divisors (1).

830390069 is an equidigital number, since it uses as much as digits as its factorization.

830390069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34992, while the sum is 38.

The square root of 830390069 is about 28816.4895329046. The cubic root of 830390069 is about 939.9268348818.

The spelling of 830390069 in words is "eight hundred thirty million, three hundred ninety thousand, sixty-nine".