2947220487 has 12 divisors (see below), whose sum is σ = 4507513920. Its totient is φ = 1849236288.

The previous prime is 2947220467. The next prime is 2947220491. The reversal of 2947220487 is 7840227492.

It is not a de Polignac number, because 2947220487 - 2¹⁴ = 2947204103 is a prime.

It is a super-2 number, since 2×2947220487² = 17372217197985034338, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2947220407) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9631287 + ... + 9631592.

It is an arithmetic number, because the mean of its divisors is an integer number (375626160).

Almost surely, 2^2947220487 is an apocalyptic number.

2947220487 is a deficient number, since it is larger than the sum of its proper divisors (1560293433).

2947220487 is a wasteful number, since it uses less digits than its factorization.

2947220487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19262902 (or 19262899 counting only the distinct ones).

The product of its (nonzero) digits is 451584, while the sum is 45.

The square root of 2947220487 is about 54288.3089347974. The cubic root of 2947220487 is about 1433.7415648023.

The spelling of 2947220487 in words is "two billion, nine hundred forty-seven million, two hundred twenty thousand, four hundred eighty-seven".