3890493 has 6 divisors (see below), whose sum is σ = 5619614. Its totient is φ = 2593656.

The previous prime is 3890431. The next prime is 3890503. The reversal of 3890493 is 3940983.

It can be written as a sum of positive squares in only one way, i.e., 3526884 + 363609 = 1878^2 + 603^2 .

It is not a de Polignac number, because 3890493 - 2⁶ = 3890429 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3890423) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 216130 + ... + 216147.

Almost surely, 2^3890493 is an apocalyptic number.

It is an amenable number.

3890493 is a deficient number, since it is larger than the sum of its proper divisors (1729121).

3890493 is a wasteful number, since it uses less digits than its factorization.

3890493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 432283 (or 432280 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The square root of 3890493 is about 1972.4332688332. The cubic root of 3890493 is about 157.2780850535.

The spelling of 3890493 in words is "three million, eight hundred ninety thousand, four hundred ninety-three".