3903252981 has 4 divisors (see below), whose sum is σ = 5204337312. Its totient is φ = 2602168652.

The previous prime is 3903252971. The next prime is 3903253009. The reversal of 3903252981 is 1892523093.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3903252981 - 2¹⁹ = 3902728693 is a prime.

It is a super-2 number, since 2×3903252981² = 30470767667370772722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3903252901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 650542161 + ... + 650542166.

It is an arithmetic number, because the mean of its divisors is an integer number (1301084328).

Almost surely, 2^3903252981 is an apocalyptic number.

It is an amenable number.

3903252981 is a deficient number, since it is larger than the sum of its proper divisors (1301084331).

3903252981 is a wasteful number, since it uses less digits than its factorization.

3903252981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1301084330.

The product of its (nonzero) digits is 116640, while the sum is 42.

The square root of 3903252981 is about 62476.0192473880. The cubic root of 3903252981 is about 1574.4984352023.

The spelling of 3903252981 in words is "three billion, nine hundred three million, two hundred fifty-two thousand, nine hundred eighty-one".