90127497 has 4 divisors (see below), whose sum is σ = 120170000. Its totient is φ = 60084996.

The previous prime is 90127483. The next prime is 90127517. The reversal of 90127497 is 79472109.

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 not a de Polignac number, because 90127497 - 2¹² = 90123401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90127417) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15021247 + ... + 15021252.

It is an arithmetic number, because the mean of its divisors is an integer number (30042500).

Almost surely, 2^90127497 is an apocalyptic number.

It is an amenable number.

90127497 is a deficient number, since it is larger than the sum of its proper divisors (30042503).

90127497 is a wasteful number, since it uses less digits than its factorization.

90127497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30042502.

The product of its (nonzero) digits is 31752, while the sum is 39.

The square root of 90127497 is about 9493.5502842719. The cubic root of 90127497 is about 448.3519917179.

The spelling of 90127497 in words is "ninety million, one hundred twenty-seven thousand, four hundred ninety-seven".