3249750621 has 16 divisors (see below), whose sum is σ = 4745401920. Its totient is φ = 1965949440.

The previous prime is 3249750611. The next prime is 3249750629. The reversal of 3249750621 is 1260579423.

It is not a de Polignac number, because 3249750621 - 2¹¹ = 3249748573 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 3249750621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3249750629) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 703860 + ... + 708461.

It is an arithmetic number, because the mean of its divisors is an integer number (296587620).

Almost surely, 2^3249750621 is an apocalyptic number.

It is an amenable number.

3249750621 is a deficient number, since it is larger than the sum of its proper divisors (1495651299).

3249750621 is a wasteful number, since it uses less digits than its factorization.

3249750621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1412396.

The product of its (nonzero) digits is 90720, while the sum is 39.

The square root of 3249750621 is about 57006.5840144803. The cubic root of 3249750621 is about 1481.2101468599.

The spelling of 3249750621 in words is "three billion, two hundred forty-nine million, seven hundred fifty thousand, six hundred twenty-one".