3934749 has 48 divisors (see below), whose sum is σ = 6894720. Its totient is φ = 1975680.

The previous prime is 3934741. The next prime is 3934751. The reversal of 3934749 is 9474393.

It is not a de Polignac number, because 3934749 - 2³ = 3934741 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

3934749 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3934741) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 55384 + ... + 55454.

It is an arithmetic number, because the mean of its divisors is an integer number (143640).

Almost surely, 2^3934749 is an apocalyptic number.

3934749 is a gapful number since it is divisible by the number (39) formed by its first and last digit.

It is an amenable number.

3934749 is a deficient number, since it is larger than the sum of its proper divisors (2959971).

3934749 is a wasteful number, since it uses less digits than its factorization.

3934749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130 (or 123 counting only the distinct ones).

The product of its digits is 81648, while the sum is 39.

The square root of 3934749 is about 1983.6201753360. The cubic root of 3934749 is about 157.8722061243.

The spelling of 3934749 in words is "three million, nine hundred thirty-four thousand, seven hundred forty-nine".