3499984397 has 12 divisors (see below), whose sum is σ = 4384596636. Its totient is φ = 2769217920.

The previous prime is 3499984381. The next prime is 3499984403. The reversal of 3499984397 is 7934899943.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1216195876 + 2283788521 = 34874^2 + 47789^2 .

It is not a de Polignac number, because 3499984397 - 2⁴ = 3499984381 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3499984997) 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, 2746604 + ... + 2747877.

It is an arithmetic number, because the mean of its divisors is an integer number (365383053).

Almost surely, 2^3499984397 is an apocalyptic number.

It is an amenable number.

3499984397 is a deficient number, since it is larger than the sum of its proper divisors (884612239).

3499984397 is a wasteful number, since it uses less digits than its factorization.

3499984397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5494508 (or 5494501 counting only the distinct ones).

The product of its digits is 52907904, while the sum is 65.

The square root of 3499984397 is about 59160.6659614308. The cubic root of 3499984397 is about 1518.2922297489.

The spelling of 3499984397 in words is "three billion, four hundred ninety-nine million, nine hundred eighty-four thousand, three hundred ninety-seven".