90856430 has 32 divisors (see below), whose sum is σ = 187246080. Its totient is φ = 31093920.

The previous prime is 90856429. The next prime is 90856453. The reversal of 90856430 is 3465809.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59375 + ... + 60885.

It is an arithmetic number, because the mean of its divisors is an integer number (5851440).

Almost surely, 2^90856430 is an apocalyptic number.

90856430 is an abundant number, since it is smaller than the sum of its proper divisors (96389650).

90856430 is a wasteful number, since it uses less digits than its factorization.

90856430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2384.

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 90856430 is about 9531.8639310473. The cubic root of 90856430 is about 449.5574744324.

The spelling of 90856430 in words is "ninety million, eight hundred fifty-six thousand, four hundred thirty".