3897115394 has 16 divisors (see below), whose sum is σ = 6197443488. Its totient is φ = 1831593792.

The previous prime is 3897115319. The next prime is 3897115429. The reversal of 3897115394 is 4935117983.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46064 + ... + 99579.

It is an arithmetic number, because the mean of its divisors is an integer number (387340218).

Almost surely, 2^3897115394 is an apocalyptic number.

3897115394 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

3897115394 is a deficient number, since it is larger than the sum of its proper divisors (2300328094).

3897115394 is a wasteful number, since it uses less digits than its factorization.

3897115394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146449.

The product of its digits is 816480, while the sum is 50.

The square root of 3897115394 is about 62426.8803801696. The cubic root of 3897115394 is about 1573.6727400943.

The spelling of 3897115394 in words is "three billion, eight hundred ninety-seven million, one hundred fifteen thousand, three hundred ninety-four".