3923790 has 32 divisors (see below), whose sum is σ = 10142496. Its totient is φ = 965760.

The previous prime is 3923789. The next prime is 3923791. The reversal of 3923790 is 973293.

It is an interprime number because it is at equal distance from previous prime (3923789) and next prime (3923791).

It is a super-2 number, since 2×3923790² = 30792255928200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3923791) 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, 4641 + ... + 5420.

It is an arithmetic number, because the mean of its divisors is an integer number (316953).

Almost surely, 2^3923790 is an apocalyptic number.

3923790 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

3923790 is an abundant number, since it is smaller than the sum of its proper divisors (6218706).

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

3923790 is a wasteful number, since it uses less digits than its factorization.

3923790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10084.

The product of its (nonzero) digits is 10206, while the sum is 33.

The square root of 3923790 is about 1980.8558756255. The cubic root of 3923790 is about 157.7255021260.

The spelling of 3923790 in words is "three million, nine hundred twenty-three thousand, seven hundred ninety".