2946631 has 4 divisors (see below), whose sum is σ = 2959200. Its totient is φ = 2934064.

The previous prime is 2946623. The next prime is 2946649. The reversal of 2946631 is 1366492.

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 2946631 - 2³ = 2946623 is a prime.

It is a super-2 number, since 2×2946631² = 17365268500322, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2946593 and 2946602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2946611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5926 + ... + 6403.

It is an arithmetic number, because the mean of its divisors is an integer number (739800).

2^2946631 is an apocalyptic number.

2946631 is a deficient number, since it is larger than the sum of its proper divisors (12569).

2946631 is a wasteful number, since it uses less digits than its factorization.

2946631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12568.

The product of its digits is 7776, while the sum is 31.

The square root of 2946631 is about 1716.5753697406. The cubic root of 2946631 is about 143.3645968701.

The spelling of 2946631 in words is "two million, nine hundred forty-six thousand, six hundred thirty-one".