920971603 has 2 divisors, whose sum is σ = 920971604. Its totient is φ = 920971602.

The previous prime is 920971573. The next prime is 920971607. The reversal of 920971603 is 306179029.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-920971603 is a prime.

It is not a weakly prime, because it can be changed into another prime (920971607) 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, 460485801 + 460485802.

It is an arithmetic number, because the mean of its divisors is an integer number (460485802).

Almost surely, 2^920971603 is an apocalyptic number.

920971603 is a deficient number, since it is larger than the sum of its proper divisors (1).

920971603 is an equidigital number, since it uses as much as digits as its factorization.

920971603 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20412, while the sum is 37.

The square root of 920971603 is about 30347.5139508988. The cubic root of 920971603 is about 972.9310862763.

The spelling of 920971603 in words is "nine hundred twenty million, nine hundred seventy-one thousand, six hundred three".