90647359929 has 117 divisors (see below), whose sum is σ = 160896584757. Its totient is φ = 50920550856.

The previous prime is 90647359921. The next prime is 90647359969. The reversal of 90647359929 is 92995374609.

The square root of 90647359929 is 301077.

It is a perfect power (a square), and thus also a powerful number.

90647359929 is a `hidden beast` number, since 90 + 6 + 473 + 59 + 9 + 29 = 666.

It is not a de Polignac number, because 90647359929 - 2³ = 90647359921 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (90647359921) by changing a digit.

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 116 ways as a sum of consecutive naturals, for example, 1536395902 + ... + 1536395960.

Almost surely, 2^90647359929 is an apocalyptic number.

90647359929 is the 301077-th square number.

90647359929 is the 150539-th centered octagonal number.

It is an amenable number.

90647359929 is a deficient number, since it is larger than the sum of its proper divisors (70249224828).

90647359929 is an frugal number, since it uses more digits than its factorization.

90647359929 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168 (or 69 counting only the distinct ones).

The product of its (nonzero) digits is 33067440, while the sum is 63.

The spelling of 90647359929 in words is "ninety billion, six hundred forty-seven million, three hundred fifty-nine thousand, nine hundred twenty-nine".