90541877 has 2 divisors, whose sum is σ = 90541878. Its totient is φ = 90541876.

The previous prime is 90541819. The next prime is 90541879. The reversal of 90541877 is 77814509.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 73119601 + 17422276 = 8551^2 + 4174^2 .

It is a cyclic number.

It is not a de Polignac number, because 90541877 - 2¹⁶ = 90476341 is a prime.

Together with 90541879, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90541879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45270938 + 45270939.

It is an arithmetic number, because the mean of its divisors is an integer number (45270939).

Almost surely, 2^90541877 is an apocalyptic number.

It is an amenable number.

90541877 is a deficient number, since it is larger than the sum of its proper divisors (1).

90541877 is an equidigital number, since it uses as much as digits as its factorization.

90541877 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 70560, while the sum is 41.

The square root of 90541877 is about 9515.3495469163. The cubic root of 90541877 is about 449.0380719796.

The spelling of 90541877 in words is "ninety million, five hundred forty-one thousand, eight hundred seventy-seven".