3890635 has 16 divisors (see below), whose sum is σ = 5400000. Its totient is φ = 2635776.

The previous prime is 3890633. The next prime is 3890639. The reversal of 3890635 is 5360983.

It is a cyclic number.

It is not a de Polignac number, because 3890635 - 2¹ = 3890633 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3890635.

It is not an unprimeable number, because it can be changed into a prime (3890633) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2491 + ... + 3739.

It is an arithmetic number, because the mean of its divisors is an integer number (337500).

Almost surely, 2^3890635 is an apocalyptic number.

3890635 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

3890635 is a deficient number, since it is larger than the sum of its proper divisors (1509365).

3890635 is a wasteful number, since it uses less digits than its factorization.

3890635 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1350.

The product of its (nonzero) digits is 19440, while the sum is 34.

The square root of 3890635 is about 1972.4692646528. The cubic root of 3890635 is about 157.2799985399.

The spelling of 3890635 in words is "three million, eight hundred ninety thousand, six hundred thirty-five".