2670403 has 4 divisors (see below), whose sum is σ = 2677168. Its totient is φ = 2663640.

The previous prime is 2670373. The next prime is 2670439. The reversal of 2670403 is 3040762.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3040762 = 2 ⋅1520381.

It is a cyclic number.

It is not a de Polignac number, because 2670403 - 2¹³ = 2662211 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2670443) 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, 2751 + ... + 3592.

It is an arithmetic number, because the mean of its divisors is an integer number (669292).

2^2670403 is an apocalyptic number.

2670403 is a deficient number, since it is larger than the sum of its proper divisors (6765).

2670403 is an equidigital number, since it uses as much as digits as its factorization.

2670403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6764.

The product of its (nonzero) digits is 1008, while the sum is 22.

The square root of 2670403 is about 1634.1367751813. The cubic root of 2670403 is about 138.7369903664.

The spelling of 2670403 in words is "two million, six hundred seventy thousand, four hundred three".