2934781 has 4 divisors (see below), whose sum is σ = 2940064. Its totient is φ = 2929500.

The previous prime is 2934773. The next prime is 2934787. The reversal of 2934781 is 1874392.

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.

It is a cyclic number.

It is not a de Polignac number, because 2934781 - 2³ = 2934773 is a prime.

It is a super-2 number, since 2×2934781² = 17225879035922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2934787) 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, 1695 + ... + 2956.

It is an arithmetic number, because the mean of its divisors is an integer number (735016).

2^2934781 is an apocalyptic number.

It is an amenable number.

2934781 is a deficient number, since it is larger than the sum of its proper divisors (5283).

2934781 is an equidigital number, since it uses as much as digits as its factorization.

2934781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5282.

The product of its digits is 12096, while the sum is 34.

The square root of 2934781 is about 1713.1202526384. The cubic root of 2934781 is about 143.1721564260.

The spelling of 2934781 in words is "two million, nine hundred thirty-four thousand, seven hundred eighty-one".