2904431 has 4 divisors (see below), whose sum is σ = 2909592. Its totient is φ = 2899272.

The previous prime is 2904427. The next prime is 2904469. The reversal of 2904431 is 1344092.

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 2904431 - 2² = 2904427 is a prime.

It is a super-2 number, since 2×2904431² = 16871438867522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2904397 and 2904406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2904491) 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, 1616 + ... + 2901.

It is an arithmetic number, because the mean of its divisors is an integer number (727398).

2^2904431 is an apocalyptic number.

2904431 is a deficient number, since it is larger than the sum of its proper divisors (5161).

2904431 is an equidigital number, since it uses as much as digits as its factorization.

2904431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5160.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 2904431 is about 1704.2391264139. The cubic root of 2904431 is about 142.6769076072.

The spelling of 2904431 in words is "two million, nine hundred four thousand, four hundred thirty-one".