2947997494 has 32 divisors (see below), whose sum is σ = 4975266240. Its totient is φ = 1300656000.

The previous prime is 2947997491. The next prime is 2947997501. The reversal of 2947997494 is 4947997492.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2947997491) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56799 + ... + 95509.

It is an arithmetic number, because the mean of its divisors is an integer number (155477070).

Almost surely, 2^2947997494 is an apocalyptic number.

2947997494 is a deficient number, since it is larger than the sum of its proper divisors (2027268746).

2947997494 is a wasteful number, since it uses less digits than its factorization.

2947997494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38856.

The product of its digits is 41150592, while the sum is 64.

The square root of 2947997494 is about 54295.4647645639. The cubic root of 2947997494 is about 1433.8675512304.

The spelling of 2947997494 in words is "two billion, nine hundred forty-seven million, nine hundred ninety-seven thousand, four hundred ninety-four".