6940651 has 2 divisors, whose sum is σ = 6940652. Its totient is φ = 6940650.

The previous prime is 6940639. The next prime is 6940663. The reversal of 6940651 is 1560496.

It is a balanced prime because it is at equal distance from previous prime (6940639) and next prime (6940663).

It is a cyclic number.

It is not a de Polignac number, because 6940651 - 2¹³ = 6932459 is a prime.

6940651 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (6940691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3470325 + 3470326.

It is an arithmetic number, because the mean of its divisors is an integer number (3470326).

Almost surely, 2^6940651 is an apocalyptic number.

6940651 is a deficient number, since it is larger than the sum of its proper divisors (1).

6940651 is an equidigital number, since it uses as much as digits as its factorization.

6940651 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 6940651 is about 2634.5115296768. The cubic root of 6940651 is about 190.7509614857.

The spelling of 6940651 in words is "six million, nine hundred forty thousand, six hundred fifty-one".