2406637 has 4 divisors (see below), whose sum is σ = 2421216. Its totient is φ = 2392060.

The previous prime is 2406631. The next prime is 2406643. The reversal of 2406637 is 7366042.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 7366042 = 2 ⋅3683021.

It is an interprime number because it is at equal distance from previous prime (2406631) and next prime (2406643).

It is a cyclic number.

It is not a de Polignac number, because 2406637 - 2³ = 2406629 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2406631) 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, 7039 + ... + 7372.

It is an arithmetic number, because the mean of its divisors is an integer number (605304).

2^2406637 is an apocalyptic number.

It is an amenable number.

2406637 is a deficient number, since it is larger than the sum of its proper divisors (14579).

2406637 is a wasteful number, since it uses less digits than its factorization.

2406637 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14578.

The product of its (nonzero) digits is 6048, while the sum is 28.

The square root of 2406637 is about 1551.3339421285. Note that the first 3 decimals coincide. The cubic root of 2406637 is about 134.0098938265.

The spelling of 2406637 in words is "two million, four hundred six thousand, six hundred thirty-seven".