90745027 has 4 divisors (see below), whose sum is σ = 90848680. Its totient is φ = 90641376.

The previous prime is 90745021. The next prime is 90745037. The reversal of 90745027 is 72054709.

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

It is a cyclic number.

It is not a de Polignac number, because 90745027 - 2³ = 90745019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 90744983 and 90745001.

It is not an unprimeable number, because it can be changed into a prime (90745021) 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, 50502 + ... + 52267.

It is an arithmetic number, because the mean of its divisors is an integer number (22712170).

Almost surely, 2^90745027 is an apocalyptic number.

90745027 is a deficient number, since it is larger than the sum of its proper divisors (103653).

90745027 is a wasteful number, since it uses less digits than its factorization.

90745027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103652.

The product of its (nonzero) digits is 17640, while the sum is 34.

The square root of 90745027 is about 9526.0184232448. The cubic root of 90745027 is about 449.3736586601.

The spelling of 90745027 in words is "ninety million, seven hundred forty-five thousand, twenty-seven".