2904397 has 8 divisors (see below), whose sum is σ = 3101760. Its totient is φ = 2711520.

The previous prime is 2904353. The next prime is 2904403. The reversal of 2904397 is 7934092.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2904397 - 2⁷ = 2904269 is a prime.

It is an Ulam number.

It is a Duffinian number.

2904397 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2904197) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 273 + ... + 2425.

It is an arithmetic number, because the mean of its divisors is an integer number (387720).

2^2904397 is an apocalyptic number.

It is an amenable number.

2904397 is a deficient number, since it is larger than the sum of its proper divisors (197363).

2904397 is a wasteful number, since it uses less digits than its factorization.

2904397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2243.

The product of its (nonzero) digits is 13608, while the sum is 34.

The square root of 2904397 is about 1704.2291512587. The cubic root of 2904397 is about 142.6763508677.

The spelling of 2904397 in words is "two million, nine hundred four thousand, three hundred ninety-seven".