1406651 has 2 divisors, whose sum is σ = 1406652. Its totient is φ = 1406650.

The previous prime is 1406633. The next prime is 1406677. The reversal of 1406651 is 1566041.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1406651 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1406051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 703325 + 703326.

It is an arithmetic number, because the mean of its divisors is an integer number (703326).

2^1406651 is an apocalyptic number.

1406651 is a deficient number, since it is larger than the sum of its proper divisors (1).

1406651 is an equidigital number, since it uses as much as digits as its factorization.

1406651 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 1406651 is about 1186.0231869572. The cubic root of 1406651 is about 112.0457667974.

The spelling of 1406651 in words is "one million, four hundred six thousand, six hundred fifty-one".