90075777 has 8 divisors (see below), whose sum is σ = 131019360. Its totient is φ = 54591360.

The previous prime is 90075763. The next prime is 90075781. The reversal of 90075777 is 77757009.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 90075777 - 2⁴ = 90075761 is a prime.

It is a super-2 number, since 2×90075777² = 16227291204307458, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (90075757) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1364752 + ... + 1364817.

It is an arithmetic number, because the mean of its divisors is an integer number (16377420).

Almost surely, 2^90075777 is an apocalyptic number.

It is an amenable number.

90075777 is a deficient number, since it is larger than the sum of its proper divisors (40943583).

90075777 is a wasteful number, since it uses less digits than its factorization.

90075777 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2729583.

The product of its (nonzero) digits is 108045, while the sum is 42.

The square root of 90075777 is about 9490.8259387684. The cubic root of 90075777 is about 448.2662124872.

The spelling of 90075777 in words is "ninety million, seventy-five thousand, seven hundred seventy-seven".