6972649 has 2 divisors, whose sum is σ = 6972650. Its totient is φ = 6972648.

The previous prime is 6972643. The next prime is 6972659. The reversal of 6972649 is 9462796.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6786025 + 186624 = 2605^2 + 432^2 .

It is a cyclic number.

It is not a de Polignac number, because 6972649 - 2⁵ = 6972617 is a prime.

It is a d-powerful number, because it can be written as 6 + 9⁶ + 7⁸ + 2¹⁵ + 6⁶ + 4⁸ + 9⁶ .

It is not a weakly prime, because it can be changed into another prime (6972643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3486324 + 3486325.

It is an arithmetic number, because the mean of its divisors is an integer number (3486325).

Almost surely, 2^6972649 is an apocalyptic number.

It is an amenable number.

6972649 is a deficient number, since it is larger than the sum of its proper divisors (1).

6972649 is an equidigital number, since it uses as much as digits as its factorization.

6972649 is an evil number, because the sum of its binary digits is even.

The product of its digits is 163296, while the sum is 43.

The square root of 6972649 is about 2640.5773989792. The cubic root of 6972649 is about 191.0436474539.

The spelling of 6972649 in words is "six million, nine hundred seventy-two thousand, six hundred forty-nine".