3870423 has 20 divisors (see below), whose sum is σ = 5871888. Its totient is φ = 2540160.

The previous prime is 3870413. The next prime is 3870437. The reversal of 3870423 is 3240783.

It is not a de Polignac number, because 3870423 - 2¹⁰ = 3869399 is a prime.

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

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3870413) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 5415 + ... + 6087.

Almost surely, 2^3870423 is an apocalyptic number.

3870423 is a deficient number, since it is larger than the sum of its proper divisors (2001465).

3870423 is an equidigital number, since it uses as much as digits as its factorization.

3870423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 756 (or 747 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 3870423 is about 1967.3390658450. The cubic root of 3870423 is about 157.0071669683.

The spelling of 3870423 in words is "three million, eight hundred seventy thousand, four hundred twenty-three".