2920247 has 8 divisors (see below), whose sum is σ = 3246480. Its totient is φ = 2604160.

The previous prime is 2920237. The next prime is 2920249. The reversal of 2920247 is 7420292.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2920247 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 (2920249) 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 7 ways as a sum of consecutive naturals, for example, 1922 + ... + 3087.

It is an arithmetic number, because the mean of its divisors is an integer number (405810).

2^2920247 is an apocalyptic number.

2920247 is a deficient number, since it is larger than the sum of its proper divisors (326233).

2920247 is a wasteful number, since it uses less digits than its factorization.

2920247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5073.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 2920247 is about 1708.8730204436. The cubic root of 2920247 is about 142.9354200057.

The spelling of 2920247 in words is "two million, nine hundred twenty thousand, two hundred forty-seven".