919797673 has 2 divisors, whose sum is σ = 919797674. Its totient is φ = 919797672.

The previous prime is 919797667. The next prime is 919797677. The reversal of 919797673 is 376797919.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 879003904 + 40793769 = 29648^2 + 6387^2 .

It is a cyclic number.

It is not a de Polignac number, because 919797673 - 2⁹ = 919797161 is a prime.

It is not a weakly prime, because it can be changed into another prime (919797677) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 459898836 + 459898837.

It is an arithmetic number, because the mean of its divisors is an integer number (459898837).

Almost surely, 2^919797673 is an apocalyptic number.

It is an amenable number.

919797673 is a deficient number, since it is larger than the sum of its proper divisors (1).

919797673 is an equidigital number, since it uses as much as digits as its factorization.

919797673 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4500846, while the sum is 58.

The square root of 919797673 is about 30328.1663309868. The cubic root of 919797673 is about 972.5175235353.

The spelling of 919797673 in words is "nine hundred nineteen million, seven hundred ninety-seven thousand, six hundred seventy-three".