90770234 has 16 divisors (see below), whose sum is σ = 138516480. Its totient is φ = 44602320.

The previous prime is 90770231. The next prime is 90770243. The reversal of 90770234 is 43207709.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 90770234.

It is not an unprimeable number, because it can be changed into a prime (90770231) 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 7 ways as a sum of consecutive naturals, for example, 53552 + ... + 55220.

It is an arithmetic number, because the mean of its divisors is an integer number (8657280).

Almost surely, 2^90770234 is an apocalyptic number.

90770234 is a deficient number, since it is larger than the sum of its proper divisors (47746246).

90770234 is a wasteful number, since it uses less digits than its factorization.

90770234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2125.

The product of its (nonzero) digits is 10584, while the sum is 32.

The square root of 90770234 is about 9527.3413920149. The cubic root of 90770234 is about 449.4152635595.

The spelling of 90770234 in words is "ninety million, seven hundred seventy thousand, two hundred thirty-four".