8340620929 has 9 divisors (see below), whose sum is σ = 8396426691. Its totient is φ = 8285185440.

The previous prime is 8340620927. The next prime is 8340620941. The reversal of 8340620929 is 9290260438.

The square root of 8340620929 is 91327.

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

It can be written as a sum of positive squares in only one way, i.e., 2249130625 + 6091490304 = 47425^2 + 78048^2 .

It is not a de Polignac number, because 8340620929 - 2¹ = 8340620927 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8340620921) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 24749449 + ... + 24749785.

It is an arithmetic number, because the mean of its divisors is an integer number (932936299).

Almost surely, 2^8340620929 is an apocalyptic number.

8340620929 is the 91327-th square number.

8340620929 is the 45664-th centered octagonal number.

It is an amenable number.

8340620929 is a deficient number, since it is larger than the sum of its proper divisors (55805762).

8340620929 is an frugal number, since it uses more digits than its factorization.

8340620929 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1216 (or 608 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 43.

The cubic root of 8340620929 is about 2027.9914880496.

The spelling of 8340620929 in words is "eight billion, three hundred forty million, six hundred twenty thousand, nine hundred twenty-nine".