2920457 has 2 divisors, whose sum is σ = 2920458. Its totient is φ = 2920456.

The previous prime is 2920453. The next prime is 2920469. The reversal of 2920457 is 7540292.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2886601 + 33856 = 1699^2 + 184^2 .

It is a cyclic number.

It is not a de Polignac number, because 2920457 - 2² = 2920453 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2920453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1460228 + 1460229.

It is an arithmetic number, because the mean of its divisors is an integer number (1460229).

2^2920457 is an apocalyptic number.

It is an amenable number.

2920457 is a deficient number, since it is larger than the sum of its proper divisors (1).

2920457 is an equidigital number, since it uses as much as digits as its factorization.

2920457 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 2920457 is about 1708.9344633426. The cubic root of 2920457 is about 142.9388461678.

The spelling of 2920457 in words is "two million, nine hundred twenty thousand, four hundred fifty-seven".