90174853 has 2 divisors, whose sum is σ = 90174854. Its totient is φ = 90174852.

The previous prime is 90174841. The next prime is 90174863. The reversal of 90174853 is 35847109.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 87291649 + 2883204 = 9343^2 + 1698^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-90174853 is a prime.

It is a super-2 number, since 2×90174853² = 16263008227143218, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90174863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45087426 + 45087427.

It is an arithmetic number, because the mean of its divisors is an integer number (45087427).

Almost surely, 2^90174853 is an apocalyptic number.

It is an amenable number.

90174853 is a deficient number, since it is larger than the sum of its proper divisors (1).

90174853 is an equidigital number, since it uses as much as digits as its factorization.

90174853 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30240, while the sum is 37.

The square root of 90174853 is about 9496.0440710856. The cubic root of 90174853 is about 448.4305043436.

The spelling of 90174853 in words is "ninety million, one hundred seventy-four thousand, eight hundred fifty-three".