90873029 has 16 divisors (see below), whose sum is σ = 103521600. Its totient is φ = 79076736.

The previous prime is 90873019. The next prime is 90873031. The reversal of 90873029 is 92037809.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-90873029 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 90872983 and 90873001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90873019) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56762 + ... + 58340.

It is an arithmetic number, because the mean of its divisors is an integer number (6470100).

Almost surely, 2^90873029 is an apocalyptic number.

It is an amenable number.

90873029 is a deficient number, since it is larger than the sum of its proper divisors (12648571).

90873029 is a wasteful number, since it uses less digits than its factorization.

90873029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1844.

The product of its (nonzero) digits is 27216, while the sum is 38.

The square root of 90873029 is about 9532.7346024108. The cubic root of 90873029 is about 449.5848500407.

It can be divided in two parts, 908 and 73029, that added together give a palindrome (73937).

The spelling of 90873029 in words is "ninety million, eight hundred seventy-three thousand, twenty-nine".