90778301 has 4 divisors (see below), whose sum is σ = 90836604. Its totient is φ = 90720000.

The previous prime is 90778297. The next prime is 90778307. The reversal of 90778301 is 10387709.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10387709 = 1451 ⋅7159.

It can be written as a sum of positive squares in 2 ways, for example, as 80371225 + 10407076 = 8965^2 + 3226^2 .

It is a cyclic number.

It is not a de Polignac number, because 90778301 - 2² = 90778297 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90778307) 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, 26750 + ... + 29951.

It is an arithmetic number, because the mean of its divisors is an integer number (22709151).

Almost surely, 2^90778301 is an apocalyptic number.

It is an amenable number.

90778301 is a deficient number, since it is larger than the sum of its proper divisors (58303).

90778301 is a wasteful number, since it uses less digits than its factorization.

90778301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58302.

The product of its (nonzero) digits is 10584, while the sum is 35.

The square root of 90778301 is about 9527.7647431074. The cubic root of 90778301 is about 449.4285767547.

The spelling of 90778301 in words is "ninety million, seven hundred seventy-eight thousand, three hundred one".