2920347 has 8 divisors (see below), whose sum is σ = 4326480. Its totient is φ = 1946880.

The previous prime is 2920343. The next prime is 2920349. The reversal of 2920347 is 7430292.

It is not a de Polignac number, because 2920347 - 2² = 2920343 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 108161 = 2920347 / (2 + 9 + 2 + 0 + 3 + 4 + 7).

It is a self number, because there is not a number n which added to its sum of digits gives 2920347.

It is not an unprimeable number, because it can be changed into a prime (2920343) 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, 54054 + ... + 54107.

It is an arithmetic number, because the mean of its divisors is an integer number (540810).

2^2920347 is an apocalyptic number.

2920347 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

2920347 is a deficient number, since it is larger than the sum of its proper divisors (1406133).

2920347 is a wasteful number, since it uses less digits than its factorization.

2920347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108170 (or 108164 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 2920347 is about 1708.9022792424. The cubic root of 2920347 is about 142.9370515320.

The spelling of 2920347 in words is "two million, nine hundred twenty thousand, three hundred forty-seven".