920895847 has 2 divisors, whose sum is σ = 920895848. Its totient is φ = 920895846.

The previous prime is 920895839. The next prime is 920895853. The reversal of 920895847 is 748598029.

It is a strong prime.

It is an emirp because it is prime and its reverse (748598029) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 920895847 - 2³ = 920895839 is a prime.

It is a super-2 number, since 2×920895847² = 1696098322043694818, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 920895794 and 920895803.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (920895817) 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, 460447923 + 460447924.

It is an arithmetic number, because the mean of its divisors is an integer number (460447924).

Almost surely, 2^920895847 is an apocalyptic number.

920895847 is a deficient number, since it is larger than the sum of its proper divisors (1).

920895847 is an equidigital number, since it uses as much as digits as its factorization.

920895847 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1451520, while the sum is 52.

The square root of 920895847 is about 30346.2657834535. The cubic root of 920895847 is about 972.9044088745.

The spelling of 920895847 in words is "nine hundred twenty million, eight hundred ninety-five thousand, eight hundred forty-seven".