3900420127 has 4 divisors (see below), whose sum is σ = 3900685320. Its totient is φ = 3900154936.

The previous prime is 3900420119. The next prime is 3900420151. The reversal of 3900420127 is 7210240093.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3900420127 - 2³ = 3900420119 is a prime.

It is a super-2 number, since 2×3900420127² = 30426554334213392258, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3900420095 and 3900420104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3900420827) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 109153 + ... + 140410.

It is an arithmetic number, because the mean of its divisors is an integer number (975171330).

Almost surely, 2^3900420127 is an apocalyptic number.

3900420127 is a deficient number, since it is larger than the sum of its proper divisors (265193).

3900420127 is a wasteful number, since it uses less digits than its factorization.

3900420127 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265192.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 3900420127 is about 62453.3436014438. The cubic root of 3900420127 is about 1574.1174364388.

The spelling of 3900420127 in words is "three billion, nine hundred million, four hundred twenty thousand, one hundred twenty-seven".