3250628749 has 4 divisors (see below), whose sum is σ = 3299145664. Its totient is φ = 3202111836.

The previous prime is 3250628671. The next prime is 3250628767. The reversal of 3250628749 is 9478260523.

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 3250628749 - 2⁹ = 3250628237 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3250628699 and 3250628708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3250628449) 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, 24258357 + ... + 24258490.

It is an arithmetic number, because the mean of its divisors is an integer number (824786416).

Almost surely, 2^3250628749 is an apocalyptic number.

It is an amenable number.

3250628749 is a deficient number, since it is larger than the sum of its proper divisors (48516915).

3250628749 is an equidigital number, since it uses as much as digits as its factorization.

3250628749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48516914.

The product of its (nonzero) digits is 725760, while the sum is 46.

The square root of 3250628749 is about 57014.2854817983. The cubic root of 3250628749 is about 1481.3435494004.

The spelling of 3250628749 in words is "three billion, two hundred fifty million, six hundred twenty-eight thousand, seven hundred forty-nine".