3923765 has 4 divisors (see below), whose sum is σ = 4708524. Its totient is φ = 3139008.

The previous prime is 3923761. The next prime is 3923771. The reversal of 3923765 is 5673293.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5673293 = 41 ⋅138373.

It can be written as a sum of positive squares in 2 ways, for example, as 2430481 + 1493284 = 1559^2 + 1222^2 .

It is a cyclic number.

It is not a de Polignac number, because 3923765 - 2² = 3923761 is a prime.

It is a d-powerful number, because it can be written as 3¹² + 9³ + 2 + 3¹³ + 7⁶ + 6⁸ + 5 .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3923761) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 392372 + ... + 392381.

It is an arithmetic number, because the mean of its divisors is an integer number (1177131).

Almost surely, 2^3923765 is an apocalyptic number.

It is an amenable number.

3923765 is a deficient number, since it is larger than the sum of its proper divisors (784759).

3923765 is an equidigital number, since it uses as much as digits as its factorization.

3923765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 784758.

The product of its digits is 34020, while the sum is 35.

The square root of 3923765 is about 1980.8495652119. The cubic root of 3923765 is about 157.7251671483.

The spelling of 3923765 in words is "three million, nine hundred twenty-three thousand, seven hundred sixty-five".