3942553 has 2 divisors, whose sum is σ = 3942554. Its totient is φ = 3942552.

The previous prime is 3942551. The next prime is 3942569. The reversal of 3942553 is 3552493.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2471184 + 1471369 = 1572^2 + 1213^2 .

It is a cyclic number.

It is not a de Polignac number, because 3942553 - 2¹ = 3942551 is a prime.

Together with 3942551, it forms a pair of twin primes.

It is a d-powerful number, because it can be written as 3⁵ + 9² + 4⁵ + 2¹⁵ + 5⁹ + 5⁹ + 3⁷ .

It is not a weakly prime, because it can be changed into another prime (3942551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1971276 + 1971277.

It is an arithmetic number, because the mean of its divisors is an integer number (1971277).

Almost surely, 2^3942553 is an apocalyptic number.

It is an amenable number.

3942553 is a deficient number, since it is larger than the sum of its proper divisors (1).

3942553 is an equidigital number, since it uses as much as digits as its factorization.

3942553 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16200, while the sum is 31.

The square root of 3942553 is about 1985.5863113952. The cubic root of 3942553 is about 157.9765093529.

The spelling of 3942553 in words is "three million, nine hundred forty-two thousand, five hundred fifty-three".