90929801 has 8 divisors (see below), whose sum is σ = 96076800. Its totient is φ = 85818960.

The previous prime is 90929779. The next prime is 90929803. The reversal of 90929801 is 10892909.

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 90929801 - 2²² = 86735497 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (90929803) 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, 3785 + ... + 14006.

It is an arithmetic number, because the mean of its divisors is an integer number (12009600).

Almost surely, 2^90929801 is an apocalyptic number.

90929801 is the 4265-th centered decagonal number.

It is an amenable number.

90929801 is a deficient number, since it is larger than the sum of its proper divisors (5146999).

90929801 is a wasteful number, since it uses less digits than its factorization.

90929801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18079.

The product of its (nonzero) digits is 11664, while the sum is 38.

The square root of 90929801 is about 9535.7118769392. The cubic root of 90929801 is about 449.6784550703.

The spelling of 90929801 in words is "ninety million, nine hundred twenty-nine thousand, eight hundred one".