3952691 has 2 divisors, whose sum is σ = 3952692. Its totient is φ = 3952690.

The previous prime is 3952679. The next prime is 3952733. The reversal of 3952691 is 1962593.

It is a weak prime.

It is an emirp because it is prime and its reverse (1962593) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3952691 - 2¹⁴ = 3936307 is a prime.

It is a super-2 number, since 2×3952691² = 31247532282962, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (3952601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1976345 + 1976346.

It is an arithmetic number, because the mean of its divisors is an integer number (1976346).

Almost surely, 2^3952691 is an apocalyptic number.

3952691 is a deficient number, since it is larger than the sum of its proper divisors (1).

3952691 is an equidigital number, since it uses as much as digits as its factorization.

3952691 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14580, while the sum is 35.

The square root of 3952691 is about 1988.1375706927. The cubic root of 3952691 is about 158.1118019782. Note that the first 3 decimals are identical.

The spelling of 3952691 in words is "three million, nine hundred fifty-two thousand, six hundred ninety-one".