90671434 has 16 divisors (see below), whose sum is σ = 159052608. Its totient is φ = 37955232.

The previous prime is 90671431. The next prime is 90671443. The reversal of 90671434 is 43417609.

90671434 = 1786² + 1787² + ... + 1813².

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 90671434.

It is not an unprimeable number, because it can be changed into a prime (90671431) 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, 74707 + ... + 75910.

It is an arithmetic number, because the mean of its divisors is an integer number (9940788).

Almost surely, 2^90671434 is an apocalyptic number.

90671434 is a deficient number, since it is larger than the sum of its proper divisors (68381174).

90671434 is a wasteful number, since it uses less digits than its factorization.

90671434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150669.

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 90671434 is about 9522.1549031719. The cubic root of 90671434 is about 449.2521471358.

It can be divided in two parts, 9067 and 1434, that added together give a palindrome (10501).

The spelling of 90671434 in words is "ninety million, six hundred seventy-one thousand, four hundred thirty-four".