3691708416 has 204 divisors, whose sum is σ = 11654833320. Its totient is φ = 1116733440.

The previous prime is 3691708393. The next prime is 3691708421. The reversal of 3691708416 is 6148071963.

It is a happy number.

3691708416 is a `hidden beast` number, since 3 + 69 + 170 + 8 + 416 = 666.

It is a super-2 number, since 2×3691708416² = 27257422057530458112, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6487780 + ... + 6488348.

Almost surely, 2^3691708416 is an apocalyptic number.

3691708416 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3691708416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5827416660).

3691708416 is an abundant number, since it is smaller than the sum of its proper divisors (7963124904).

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

3691708416 is an equidigital number, since it uses as much as digits as its factorization.

3691708416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 618 (or 585 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The square root of 3691708416 is about 60759.4306754104. The cubic root of 3691708416 is about 1545.5241555828.

The spelling of 3691708416 in words is "three billion, six hundred ninety-one million, seven hundred eight thousand, four hundred sixteen".