90680041 has 2 divisors, whose sum is σ = 90680042. Its totient is φ = 90680040.

The previous prime is 90680021. The next prime is 90680087. The reversal of 90680041 is 14008609.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 90326016 + 354025 = 9504^2 + 595^2 .

It is an emirp because it is prime and its reverse (14008609) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 90680041 - 2¹⁵ = 90647273 is a prime.

It is equal to p_5254165 and since 90680041 and 5254165 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 90679991 and 90680009.

It is not a weakly prime, because it can be changed into another prime (90680021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45340020 + 45340021.

It is an arithmetic number, because the mean of its divisors is an integer number (45340021).

Almost surely, 2^90680041 is an apocalyptic number.

It is an amenable number.

90680041 is a deficient number, since it is larger than the sum of its proper divisors (1).

90680041 is an equidigital number, since it uses as much as digits as its factorization.

90680041 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 90680041 is about 9522.6068384660. The cubic root of 90680041 is about 449.2663617960.

The spelling of 90680041 in words is "ninety million, six hundred eighty thousand, forty-one".