3816897720 has 32 divisors (see below), whose sum is σ = 11450693520. Its totient is φ = 1017839360.

The previous prime is 3816897701. The next prime is 3816897739. The reversal of 3816897720 is 277986183.

It is an interprime number because it is at equal distance from previous prime (3816897701) and next prime (3816897739).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15903621 + ... + 15903860.

Almost surely, 2^3816897720 is an apocalyptic number.

3816897720 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3816897720 is an abundant number, since it is smaller than the sum of its proper divisors (7633795800).

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

3816897720 is a wasteful number, since it uses less digits than its factorization.

3816897720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31807495 (or 31807491 counting only the distinct ones).

The product of its (nonzero) digits is 1016064, while the sum is 51.

The square root of 3816897720 is about 61781.0466081629. The cubic root of 3816897720 is about 1562.8003776219.

The spelling of 3816897720 in words is "three billion, eight hundred sixteen million, eight hundred ninety-seven thousand, seven hundred twenty".