90860477 has 4 divisors (see below), whose sum is σ = 90989340. Its totient is φ = 90731616.

The previous prime is 90860467. The next prime is 90860491. The reversal of 90860477 is 77406809.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 39866596 + 50993881 = 6314^2 + 7141^2 .

It is a cyclic number.

It is not a de Polignac number, because 90860477 - 2¹⁴ = 90844093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90860417) 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 in 3 ways as a sum of consecutive naturals, for example, 63368 + ... + 64785.

It is an arithmetic number, because the mean of its divisors is an integer number (22747335).

Almost surely, 2^90860477 is an apocalyptic number.

It is an amenable number.

90860477 is a deficient number, since it is larger than the sum of its proper divisors (128863).

90860477 is a wasteful number, since it uses less digits than its factorization.

90860477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128862.

The product of its (nonzero) digits is 84672, while the sum is 41.

The square root of 90860477 is about 9532.0762166487. The cubic root of 90860477 is about 449.5641491832.

The spelling of 90860477 in words is "ninety million, eight hundred sixty thousand, four hundred seventy-seven".