90127477 has 4 divisors (see below), whose sum is σ = 98320896. Its totient is φ = 81934060.

The previous prime is 90127463. The next prime is 90127483. The reversal of 90127477 is 77472109.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 90127477 - 2¹¹ = 90125429 is a prime.

It is a super-2 number, since 2×90127477² = 16245924220771058, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90127417) 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, 4096693 + ... + 4096714.

It is an arithmetic number, because the mean of its divisors is an integer number (24580224).

Almost surely, 2^90127477 is an apocalyptic number.

It is an amenable number.

90127477 is a deficient number, since it is larger than the sum of its proper divisors (8193419).

90127477 is a wasteful number, since it uses less digits than its factorization.

90127477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8193418.

The product of its (nonzero) digits is 24696, while the sum is 37.

The square root of 90127477 is about 9493.5492309252. The cubic root of 90127477 is about 448.3519585536.

The spelling of 90127477 in words is "ninety million, one hundred twenty-seven thousand, four hundred seventy-seven".