90577390 has 16 divisors (see below), whose sum is σ = 165803760. Its totient is φ = 35616640.

The previous prime is 90577363. The next prime is 90577391. The reversal of 90577390 is 9377509.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90577391) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76171 + ... + 77350.

It is an arithmetic number, because the mean of its divisors is an integer number (10362735).

Almost surely, 2^90577390 is an apocalyptic number.

90577390 is a deficient number, since it is larger than the sum of its proper divisors (75226370).

90577390 is a wasteful number, since it uses less digits than its factorization.

90577390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153587.

The product of its (nonzero) digits is 59535, while the sum is 40.

The square root of 90577390 is about 9517.2154541126. The cubic root of 90577390 is about 449.0967726425.

The spelling of 90577390 in words is "ninety million, five hundred seventy-seven thousand, three hundred ninety".