920030393 has 2 divisors, whose sum is σ = 920030394. Its totient is φ = 920030392.

The previous prime is 920030389. The next prime is 920030411. The reversal of 920030393 is 393030029.

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., 920030224 + 169 = 30332^2 + 13^2 .

It is a cyclic number.

It is not a de Polignac number, because 920030393 - 2² = 920030389 is a prime.

It is not a weakly prime, because it can be changed into another prime (920030323) 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 as a sum of consecutive naturals, namely, 460015196 + 460015197.

It is an arithmetic number, because the mean of its divisors is an integer number (460015197).

Almost surely, 2^920030393 is an apocalyptic number.

It is an amenable number.

920030393 is a deficient number, since it is larger than the sum of its proper divisors (1).

920030393 is an equidigital number, since it uses as much as digits as its factorization.

920030393 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4374, while the sum is 29.

The square root of 920030393 is about 30332.0027858366. The cubic root of 920030393 is about 972.5995362068.

It can be divided in two parts, 9200 and 30393, that added together give a palindrome (39593).

The spelling of 920030393 in words is "nine hundred twenty million, thirty thousand, three hundred ninety-three".