3890070 has 24 divisors (see below), whose sum is σ = 10114416. Its totient is φ = 1037328.

The previous prime is 3890063. The next prime is 3890071. The reversal of 3890070 is 700983.

It is a happy number.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3890071) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21522 + ... + 21701.

It is an arithmetic number, because the mean of its divisors is an integer number (421434).

Almost surely, 2^3890070 is an apocalyptic number.

3890070 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

3890070 is an abundant number, since it is smaller than the sum of its proper divisors (6224346).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3890070 is a wasteful number, since it uses less digits than its factorization.

3890070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43236 (or 43233 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 3890070 is about 1972.3260379562. The cubic root of 3890070 is about 157.2723847442.

The spelling of 3890070 in words is "three million, eight hundred ninety thousand, seventy".