90396843 has 8 divisors (see below), whose sum is σ = 121396800. Its totient is φ = 59830728.

The previous prime is 90396833. The next prime is 90396863. The reversal of 90396843 is 34869309.

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

It is not a de Polignac number, because 90396843 - 2⁴ = 90396827 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 90396795 and 90396804.

It is not an unprimeable number, because it can be changed into a prime (90396833) 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, 107973 + ... + 108806.

It is an arithmetic number, because the mean of its divisors is an integer number (15174600).

Almost surely, 2^90396843 is an apocalyptic number.

90396843 is a deficient number, since it is larger than the sum of its proper divisors (30999957).

90396843 is a wasteful number, since it uses less digits than its factorization.

90396843 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216921.

The product of its (nonzero) digits is 139968, while the sum is 42.

The square root of 90396843 is about 9507.7254377690. The cubic root of 90396843 is about 448.7981808020.

The spelling of 90396843 in words is "ninety million, three hundred ninety-six thousand, eight hundred forty-three".