3784429 has 4 divisors (see below), whose sum is σ = 4128480. Its totient is φ = 3440380.

The previous prime is 3784427. The next prime is 3784433. The reversal of 3784429 is 9244873.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3784429 - 2¹ = 3784427 is a prime.

It is a d-powerful number, because it can be written as 3¹³ + 7² + 8⁵ + 4³ + 4⁵ + 2²¹ + 9⁵ .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3784427) 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, 172009 + ... + 172030.

It is an arithmetic number, because the mean of its divisors is an integer number (1032120).

Almost surely, 2^3784429 is an apocalyptic number.

It is an amenable number.

3784429 is a deficient number, since it is larger than the sum of its proper divisors (344051).

3784429 is a wasteful number, since it uses less digits than its factorization.

3784429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 344050.

The product of its digits is 48384, while the sum is 37.

The square root of 3784429 is about 1945.3608919684. The cubic root of 3784429 is about 155.8356394053.

It can be divided in two parts, 37844 and 29, that added together give a palindrome (37873).

The spelling of 3784429 in words is "three million, seven hundred eighty-four thousand, four hundred twenty-nine".