2609431 has 8 divisors (see below), whose sum is σ = 2867328. Its totient is φ = 2355000.

The previous prime is 2609423. The next prime is 2609443. The reversal of 2609431 is 1349062.

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 2609431 - 2³ = 2609423 is a prime.

It is a super-2 number, since 2×2609431² = 13618260287522, 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 = 2609396 and 2609405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2609401) 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, 876 + ... + 2446.

It is an arithmetic number, because the mean of its divisors is an integer number (358416).

2^2609431 is an apocalyptic number.

2609431 is a deficient number, since it is larger than the sum of its proper divisors (257897).

2609431 is a wasteful number, since it uses less digits than its factorization.

2609431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1733.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 2609431 is about 1615.3733314624. The cubic root of 2609431 is about 137.6729460155.

The spelling of 2609431 in words is "two million, six hundred nine thousand, four hundred thirty-one".