3890423975 has 6 divisors (see below), whose sum is σ = 4824125760. Its totient is φ = 3112339160.

The previous prime is 3890423969. The next prime is 3890423989. The reversal of 3890423975 is 5793240983.

It is a happy number.

It is not a de Polignac number, because 3890423975 - 2⁴ = 3890423959 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 77808455 + ... + 77808504.

It is an arithmetic number, because the mean of its divisors is an integer number (804020960).

Almost surely, 2^3890423975 is an apocalyptic number.

3890423975 is a deficient number, since it is larger than the sum of its proper divisors (933701785).

3890423975 is a wasteful number, since it uses less digits than its factorization.

3890423975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155616969 (or 155616964 counting only the distinct ones).

The product of its (nonzero) digits is 1632960, while the sum is 50.

The square root of 3890423975 is about 62373.2633024760. The cubic root of 3890423975 is about 1572.7715490716.

The spelling of 3890423975 in words is "three billion, eight hundred ninety million, four hundred twenty-three thousand, nine hundred seventy-five".