2904239977 has 4 divisors (see below), whose sum is σ = 2905681876. Its totient is φ = 2902798080.

The previous prime is 2904239893. The next prime is 2904239981. The reversal of 2904239977 is 7799324092.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2534216281 + 370023696 = 50341^2 + 19236^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2904239977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2904239677) 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, 717924 + ... + 721957.

It is an arithmetic number, because the mean of its divisors is an integer number (726420469).

Almost surely, 2^2904239977 is an apocalyptic number.

It is an amenable number.

2904239977 is a deficient number, since it is larger than the sum of its proper divisors (1441899).

2904239977 is a wasteful number, since it uses less digits than its factorization.

2904239977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1441898.

The product of its (nonzero) digits is 1714608, while the sum is 52.

The square root of 2904239977 is about 53891.0008906867. Note that the first 3 decimals coincide. The cubic root of 2904239977 is about 1426.7377960856.

The spelling of 2904239977 in words is "two billion, nine hundred four million, two hundred thirty-nine thousand, nine hundred seventy-seven".