1000806427 has 2 divisors, whose sum is σ = 1000806428. Its totient is φ = 1000806426.

The previous prime is 1000806419. The next prime is 1000806461. The reversal of 1000806427 is 7246080001.

It is a weak prime.

It is an emirp because it is prime and its reverse (7246080001) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1000806427 - 2³ = 1000806419 is a prime.

It is a super-2 number, since 2×1000806427² = 2003227008649012658, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1000806395 and 1000806404.

It is not a weakly prime, because it can be changed into another prime (1000806227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500403213 + 500403214.

It is an arithmetic number, because the mean of its divisors is an integer number (500403214).

Almost surely, 2^1000806427 is an apocalyptic number.

1000806427 is a deficient number, since it is larger than the sum of its proper divisors (1).

1000806427 is an equidigital number, since it uses as much as digits as its factorization.

1000806427 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 1000806427 is about 31635.5247625197. The cubic root of 1000806427 is about 1000.2687367741.

Adding to 1000806427 its reverse (7246080001), we get a palindrome (8246886428).

The spelling of 1000806427 in words is "one billion, eight hundred six thousand, four hundred twenty-seven".