3491897752 has 16 divisors (see below), whose sum is σ = 7482638160. Its totient is φ = 1496527584.

The previous prime is 3491897719. The next prime is 3491897771. The reversal of 3491897752 is 2577981943.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 3491897693 and 3491897702.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31177603 + ... + 31177714.

It is an arithmetic number, because the mean of its divisors is an integer number (467664885).

Almost surely, 2^3491897752 is an apocalyptic number.

It is an amenable number.

3491897752 is an abundant number, since it is smaller than the sum of its proper divisors (3990740408).

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

3491897752 is a wasteful number, since it uses less digits than its factorization.

3491897752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62355330 (or 62355326 counting only the distinct ones).

The product of its digits is 3810240, while the sum is 55.

The square root of 3491897752 is about 59092.2816618211. The cubic root of 3491897752 is about 1517.1219999257.

The spelling of 3491897752 in words is "three billion, four hundred ninety-one million, eight hundred ninety-seven thousand, seven hundred fifty-two".