2904920387 has 4 divisors (see below), whose sum is σ = 2907494520. Its totient is φ = 2902346256.

The previous prime is 2904920383. The next prime is 2904920443. The reversal of 2904920387 is 7830294092.

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 2904920387 - 2² = 2904920383 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2904920383) 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, 1285373 + ... + 1287630.

It is an arithmetic number, because the mean of its divisors is an integer number (726873630).

Almost surely, 2^2904920387 is an apocalyptic number.

2904920387 is a deficient number, since it is larger than the sum of its proper divisors (2574133).

2904920387 is a wasteful number, since it uses less digits than its factorization.

2904920387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2574132.

The product of its (nonzero) digits is 217728, while the sum is 44.

The square root of 2904920387 is about 53897.3133560477. The cubic root of 2904920387 is about 1426.8492068586.

The spelling of 2904920387 in words is "two billion, nine hundred four million, nine hundred twenty thousand, three hundred eighty-seven".