920217427 has 2 divisors, whose sum is σ = 920217428. Its totient is φ = 920217426.

The previous prime is 920217401. The next prime is 920217433. The reversal of 920217427 is 724712029.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 920217427 - 2¹¹ = 920215379 is a prime.

It is a super-2 number, since 2×920217427² = 1693600225909000658, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 920217392 and 920217401.

It is not a weakly prime, because it can be changed into another prime (920217827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 460108713 + 460108714.

It is an arithmetic number, because the mean of its divisors is an integer number (460108714).

Almost surely, 2^920217427 is an apocalyptic number.

920217427 is a deficient number, since it is larger than the sum of its proper divisors (1).

920217427 is an equidigital number, since it uses as much as digits as its factorization.

920217427 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14112, while the sum is 34.

The square root of 920217427 is about 30335.0857424204. The cubic root of 920217427 is about 972.6654386877.

The spelling of 920217427 in words is "nine hundred twenty million, two hundred seventeen thousand, four hundred twenty-seven".