3299521693 has 12 divisors (see below), whose sum is σ = 3576226260. Its totient is φ = 3042838656.

The previous prime is 3299521651. The next prime is 3299521697. The reversal of 3299521693 is 3961259923.

It is a happy number.

3299521693 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 2106993604 + 1192528089 = 45902^2 + 34533^2 .

It is not a de Polignac number, because 3299521693 - 2¹³ = 3299513501 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3299521697) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 182155 + ... + 199447.

It is an arithmetic number, because the mean of its divisors is an integer number (298018855).

Almost surely, 2^3299521693 is an apocalyptic number.

It is an amenable number.

3299521693 is a deficient number, since it is larger than the sum of its proper divisors (276704567).

3299521693 is a wasteful number, since it uses less digits than its factorization.

3299521693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18448 (or 18435 counting only the distinct ones).

The product of its digits is 787320, while the sum is 49.

The square root of 3299521693 is about 57441.4631864475. The cubic root of 3299521693 is about 1488.7336195675.

The spelling of 3299521693 in words is "three billion, two hundred ninety-nine million, five hundred twenty-one thousand, six hundred ninety-three".