90394837 has 16 divisors (see below), whose sum is σ = 102816000. Its totient is φ = 78784704.

The previous prime is 90394817. The next prime is 90394849. The reversal of 90394837 is 73849309.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-90394837 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 90394793 and 90394802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90394817) 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 15 ways as a sum of consecutive naturals, for example, 125364 + ... + 126082.

It is an arithmetic number, because the mean of its divisors is an integer number (6426000).

Almost surely, 2^90394837 is an apocalyptic number.

It is an amenable number.

90394837 is a deficient number, since it is larger than the sum of its proper divisors (12421163).

90394837 is a wasteful number, since it uses less digits than its factorization.

90394837 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1260.

The product of its (nonzero) digits is 163296, while the sum is 43.

The square root of 90394837 is about 9507.6199440238. The cubic root of 90394837 is about 448.7948610112.

The spelling of 90394837 in words is "ninety million, three hundred ninety-four thousand, eight hundred thirty-seven".