90922801 has 8 divisors (see below), whose sum is σ = 96601320. Its totient is φ = 85413888.

The previous prime is 90922787. The next prime is 90922823. The reversal of 90922801 is 10822909.

It can be written as a sum of positive squares in 4 ways, for example, as 43243776 + 47679025 = 6576^2 + 6905^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 90922801 - 2⁷ = 90922673 is a prime.

It is not an unprimeable number, because it can be changed into a prime (90922301) 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, 41296 + ... + 43441.

It is an arithmetic number, because the mean of its divisors is an integer number (12075165).

Almost surely, 2^90922801 is an apocalyptic number.

It is an amenable number.

90922801 is a deficient number, since it is larger than the sum of its proper divisors (5678519).

90922801 is a wasteful number, since it uses less digits than its factorization.

90922801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84803.

The product of its (nonzero) digits is 2592, while the sum is 31.

The square root of 90922801 is about 9535.3448285838. The cubic root of 90922801 is about 449.6669156559. Note that the first 3 decimals are identical.

The spelling of 90922801 in words is "ninety million, nine hundred twenty-two thousand, eight hundred one".