3952649 has 2 divisors, whose sum is σ = 3952650. Its totient is φ = 3952648.

The previous prime is 3952633. The next prime is 3952651. The reversal of 3952649 is 9462593.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3553225 + 399424 = 1885^2 + 632^2 .

It is a cyclic number.

It is not a de Polignac number, because 3952649 - 2⁴ = 3952633 is a prime.

Together with 3952651, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (3952679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1976324 + 1976325.

It is an arithmetic number, because the mean of its divisors is an integer number (1976325).

Almost surely, 2^3952649 is an apocalyptic number.

It is an amenable number.

3952649 is a deficient number, since it is larger than the sum of its proper divisors (1).

3952649 is an equidigital number, since it uses as much as digits as its factorization.

3952649 is an evil number, because the sum of its binary digits is even.

The product of its digits is 58320, while the sum is 38.

The square root of 3952649 is about 1988.1270080153. The cubic root of 3952649 is about 158.1112419615. Note that the first 3 decimals are identical.

The spelling of 3952649 in words is "three million, nine hundred fifty-two thousand, six hundred forty-nine".