2670631 has 4 divisors (see below), whose sum is σ = 2674600. Its totient is φ = 2666664.

The previous prime is 2670611. The next prime is 2670637. The reversal of 2670631 is 1360762.

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 2670631 - 2¹¹ = 2668583 is a prime.

It is a super-2 number, since 2×2670631² = 14264539876322, 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 = 2670596 and 2670605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2670637) 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, 696 + ... + 2413.

It is an arithmetic number, because the mean of its divisors is an integer number (668650).

2^2670631 is an apocalyptic number.

2670631 is a deficient number, since it is larger than the sum of its proper divisors (3969).

2670631 is an equidigital number, since it uses as much as digits as its factorization.

2670631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3968.

The product of its (nonzero) digits is 1512, while the sum is 25.

The square root of 2670631 is about 1634.2065352947. The cubic root of 2670631 is about 138.7409387259.

The spelling of 2670631 in words is "two million, six hundred seventy thousand, six hundred thirty-one".