2947261 has 4 divisors (see below), whose sum is σ = 3102400. Its totient is φ = 2792124.

The previous prime is 2947249. The next prime is 2947271. The reversal of 2947261 is 1627492.

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 a de Polignac number, because none of the positive numbers 2^k-2947261 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 (2947211) 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, 77541 + ... + 77578.

It is an arithmetic number, because the mean of its divisors is an integer number (775600).

2^2947261 is an apocalyptic number.

It is an amenable number.

2947261 is a deficient number, since it is larger than the sum of its proper divisors (155139).

2947261 is a wasteful number, since it uses less digits than its factorization.

2947261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155138.

The product of its digits is 6048, while the sum is 31.

The square root of 2947261 is about 1716.7588648380. The cubic root of 2947261 is about 143.3748134258.

The spelling of 2947261 in words is "two million, nine hundred forty-seven thousand, two hundred sixty-one".