920881603 has 2 divisors, whose sum is σ = 920881604. Its totient is φ = 920881602.

The previous prime is 920881589. The next prime is 920881609. The reversal of 920881603 is 306188029.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 920881603 - 2¹³ = 920873411 is a prime.

It is not a weakly prime, because it can be changed into another prime (920881609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 460440801 + 460440802.

It is an arithmetic number, because the mean of its divisors is an integer number (460440802).

Almost surely, 2^920881603 is an apocalyptic number.

920881603 is a deficient number, since it is larger than the sum of its proper divisors (1).

920881603 is an equidigital number, since it uses as much as digits as its factorization.

920881603 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20736, while the sum is 37.

The square root of 920881603 is about 30346.0310913964. The cubic root of 920881603 is about 972.8993927003.

The spelling of 920881603 in words is "nine hundred twenty million, eight hundred eighty-one thousand, six hundred three".