3497391216 has 80 divisors (see below), whose sum is σ = 10951441920. Its totient is φ = 1059814080.

The previous prime is 3497391173. The next prime is 3497391217. The reversal of 3497391216 is 6121937943.

3497391216 is a `hidden beast` number, since 3 + 49 + 7 + 391 + 216 = 666.

3497391216 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3497391217) 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, 363240 + ... + 372743.

It is an arithmetic number, because the mean of its divisors is an integer number (136893024).

Almost surely, 2^3497391216 is an apocalyptic number.

3497391216 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

3497391216 is an abundant number, since it is smaller than the sum of its proper divisors (7454050704).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3497391216 is a wasteful number, since it uses less digits than its factorization.

3497391216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 736011 (or 735999 counting only the distinct ones).

The product of its digits is 244944, while the sum is 45.

The square root of 3497391216 is about 59138.7454719831. The cubic root of 3497391216 is about 1517.9171633780.

The spelling of 3497391216 in words is "three billion, four hundred ninety-seven million, three hundred ninety-one thousand, two hundred sixteen".