90651434 has 8 divisors (see below), whose sum is σ = 136276068. Its totient is φ = 45226080.

The previous prime is 90651401. The next prime is 90651437. The reversal of 90651434 is 43415609.

It can be written as a sum of positive squares in 2 ways, for example, as 88416409 + 2235025 = 9403^2 + 1495^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 90651434.

It is not an unprimeable number, because it can be changed into a prime (90651437) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48677 + ... + 50504.

Almost surely, 2^90651434 is an apocalyptic number.

90651434 is a deficient number, since it is larger than the sum of its proper divisors (45624634).

90651434 is a wasteful number, since it uses less digits than its factorization.

90651434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99640.

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 90651434 is about 9521.1046628004. The cubic root of 90651434 is about 449.2191131975.

The spelling of 90651434 in words is "ninety million, six hundred fifty-one thousand, four hundred thirty-four".