3890744453 has 4 divisors (see below), whose sum is σ = 3894228780. Its totient is φ = 3887260128.

The previous prime is 3890744419. The next prime is 3890744461. The reversal of 3890744453 is 3544470983.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 637411009 + 3253333444 = 25247^2 + 57038^2 .

It is a cyclic number.

It is not a de Polignac number, because 3890744453 - 2²⁶ = 3823635589 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3890744398 and 3890744407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3890744353) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1740488 + ... + 1742721.

It is an arithmetic number, because the mean of its divisors is an integer number (973557195).

Almost surely, 2^3890744453 is an apocalyptic number.

It is an amenable number.

3890744453 is a deficient number, since it is larger than the sum of its proper divisors (3484327).

3890744453 is a wasteful number, since it uses less digits than its factorization.

3890744453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3484326.

The product of its (nonzero) digits is 1451520, while the sum is 47.

The square root of 3890744453 is about 62375.8322830245. The cubic root of 3890744453 is about 1572.8147341541.

The spelling of 3890744453 in words is "three billion, eight hundred ninety million, seven hundred forty-four thousand, four hundred fifty-three".