2820949463 has 4 divisors (see below), whose sum is σ = 2821532760. Its totient is φ = 2820366168.

The previous prime is 2820949457. The next prime is 2820949487. The reversal of 2820949463 is 3649490282.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2820949463 - 2⁸ = 2820949207 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2820942463) 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, 284333 + ... + 294086.

It is an arithmetic number, because the mean of its divisors is an integer number (705383190).

Almost surely, 2^2820949463 is an apocalyptic number.

2820949463 is a deficient number, since it is larger than the sum of its proper divisors (583297).

2820949463 is an equidigital number, since it uses as much as digits as its factorization.

2820949463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 583296.

The product of its (nonzero) digits is 746496, while the sum is 47.

The square root of 2820949463 is about 53112.6111483892. The cubic root of 2820949463 is about 1412.9661855168.

The spelling of 2820949463 in words is "two billion, eight hundred twenty million, nine hundred forty-nine thousand, four hundred sixty-three".