2978253 has 6 divisors (see below), whose sum is σ = 4301934. Its totient is φ = 1985496.

The previous prime is 2978251. The next prime is 2978267. The reversal of 2978253 is 3528792.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 2518569 + 459684 = 1587^2 + 678^2 .

It is not a de Polignac number, because 2978253 - 2¹ = 2978251 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2978251) 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 5 ways as a sum of consecutive naturals, for example, 165450 + ... + 165467.

It is an arithmetic number, because the mean of its divisors is an integer number (716989).

2^2978253 is an apocalyptic number.

It is an amenable number.

2978253 is a deficient number, since it is larger than the sum of its proper divisors (1323681).

2978253 is a wasteful number, since it uses less digits than its factorization.

2978253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330923 (or 330920 counting only the distinct ones).

The product of its digits is 30240, while the sum is 36.

The square root of 2978253 is about 1725.7615710173. The cubic root of 2978253 is about 143.8756159704.

The spelling of 2978253 in words is "two million, nine hundred seventy-eight thousand, two hundred fifty-three".