90735213 has 16 divisors (see below), whose sum is σ = 123275520. Its totient is φ = 59352384.

The previous prime is 90735209. The next prime is 90735221. The reversal of 90735213 is 31253709.

It is not a de Polignac number, because 90735213 - 2² = 90735209 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90735313) 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, 39895 + ... + 42107.

It is an arithmetic number, because the mean of its divisors is an integer number (7704720).

Almost surely, 2^90735213 is an apocalyptic number.

It is an amenable number.

90735213 is a deficient number, since it is larger than the sum of its proper divisors (32540307).

90735213 is a wasteful number, since it uses less digits than its factorization.

90735213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2468.

The product of its (nonzero) digits is 5670, while the sum is 30.

The square root of 90735213 is about 9525.5032937898. The cubic root of 90735213 is about 449.3574582790.

The spelling of 90735213 in words is "ninety million, seven hundred thirty-five thousand, two hundred thirteen".