2978461 has 4 divisors (see below), whose sum is σ = 2981952. Its totient is φ = 2974972.

The previous prime is 2978453. The next prime is 2978483. The reversal of 2978461 is 1648792.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 2978461 - 2³ = 2978453 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2978461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2978401) 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, 486 + ... + 2488.

It is an arithmetic number, because the mean of its divisors is an integer number (745488).

2^2978461 is an apocalyptic number.

It is an amenable number.

2978461 is a deficient number, since it is larger than the sum of its proper divisors (3491).

2978461 is a wasteful number, since it uses less digits than its factorization.

2978461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3490.

The product of its digits is 24192, while the sum is 37.

The square root of 2978461 is about 1725.8218332145. The cubic root of 2978461 is about 143.8789652976.

The spelling of 2978461 in words is "two million, nine hundred seventy-eight thousand, four hundred sixty-one".