2920981547 has 8 divisors (see below), whose sum is σ = 3207913200. Its totient is φ = 2637614560.

The previous prime is 2920981489. The next prime is 2920981579. The reversal of 2920981547 is 7451890292.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2920981547 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2920981447) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 889448 + ... + 892725.

It is an arithmetic number, because the mean of its divisors is an integer number (400989150).

Almost surely, 2^2920981547 is an apocalyptic number.

2920981547 is a deficient number, since it is larger than the sum of its proper divisors (286931653).

2920981547 is a wasteful number, since it uses less digits than its factorization.

2920981547 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1782333.

The product of its (nonzero) digits is 362880, while the sum is 47.

The square root of 2920981547 is about 54046.1057524037. The cubic root of 2920981547 is about 1429.4740346491.

The spelling of 2920981547 in words is "two billion, nine hundred twenty million, nine hundred eighty-one thousand, five hundred forty-seven".