90406027 has 2 divisors, whose sum is σ = 90406028. Its totient is φ = 90406026.

The previous prime is 90406003. The next prime is 90406067. The reversal of 90406027 is 72060409.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-90406027 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 90405986 and 90406004.

It is not a weakly prime, because it can be changed into another prime (90406067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45203013 + 45203014.

It is an arithmetic number, because the mean of its divisors is an integer number (45203014).

Almost surely, 2^90406027 is an apocalyptic number.

90406027 is a deficient number, since it is larger than the sum of its proper divisors (1).

90406027 is an equidigital number, since it uses as much as digits as its factorization.

90406027 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 90406027 is about 9508.2084011658. The cubic root of 90406027 is about 448.8133790574.

The spelling of 90406027 in words is "ninety million, four hundred six thousand, twenty-seven".