920771699 has 2 divisors, whose sum is σ = 920771700. Its totient is φ = 920771698.

The previous prime is 920771653. The next prime is 920771729. The reversal of 920771699 is 996177029.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-920771699 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (920771609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 460385849 + 460385850.

It is an arithmetic number, because the mean of its divisors is an integer number (460385850).

Almost surely, 2^920771699 is an apocalyptic number.

920771699 is a deficient number, since it is larger than the sum of its proper divisors (1).

920771699 is an equidigital number, since it uses as much as digits as its factorization.

920771699 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 428652, while the sum is 50.

The square root of 920771699 is about 30344.2201910018. The cubic root of 920771699 is about 972.8606871134.

The spelling of 920771699 in words is "nine hundred twenty million, seven hundred seventy-one thousand, six hundred ninety-nine".