3891400107 has 32 divisors (see below), whose sum is σ = 6197713920. Its totient is φ = 2123489280.

The previous prime is 3891400081. The next prime is 3891400169. The reversal of 3891400107 is 7010041983.

It is not a de Polignac number, because 3891400107 - 2⁷ = 3891399979 is a prime.

It is a super-2 number, since 2×3891400107² = 30285989585519222898, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3891400187) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 303319 + ... + 315887.

It is an arithmetic number, because the mean of its divisors is an integer number (193678560).

Almost surely, 2^3891400107 is an apocalyptic number.

3891400107 is a deficient number, since it is larger than the sum of its proper divisors (2306313813).

3891400107 is a wasteful number, since it uses less digits than its factorization.

3891400107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13243.

The product of its (nonzero) digits is 6048, while the sum is 33.

The square root of 3891400107 is about 62381.0877349858. The cubic root of 3891400107 is about 1572.9030775173.

The spelling of 3891400107 in words is "three billion, eight hundred ninety-one million, four hundred thousand, one hundred seven".