3897813611 has 8 divisors (see below), whose sum is σ = 4123001760. Its totient is φ = 3677268672.

The previous prime is 3897813599. The next prime is 3897813617. The reversal of 3897813611 is 1163187983.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3897813611 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3897813617) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1159076 + ... + 1162433.

It is an arithmetic number, because the mean of its divisors is an integer number (515375220).

Almost surely, 2^3897813611 is an apocalyptic number.

3897813611 is a deficient number, since it is larger than the sum of its proper divisors (225188149).

3897813611 is a wasteful number, since it uses less digits than its factorization.

3897813611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2321605.

The product of its digits is 217728, while the sum is 47.

The square root of 3897813611 is about 62432.4724081948. The cubic root of 3897813611 is about 1573.7667155381.

The spelling of 3897813611 in words is "three billion, eight hundred ninety-seven million, eight hundred thirteen thousand, six hundred eleven".