3400747 has 6 divisors (see below), whose sum is σ = 3956028. Its totient is φ = 2914884.

The previous prime is 3400739. The next prime is 3400823. The reversal of 3400747 is 7470043.

It is a happy number.

3400747 is digitally balanced in base 8, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3400747 - 2³ = 3400739 is a prime.

It is a Duffinian number.

3400747 is strictly pandigital in base 8.

3400747 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (3400717) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 34653 + ... + 34750.

It is an arithmetic number, because the mean of its divisors is an integer number (659338).

Almost surely, 2^3400747 is an apocalyptic number.

3400747 is a deficient number, since it is larger than the sum of its proper divisors (555281).

3400747 is an equidigital number, since it uses as much as digits as its factorization.

3400747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69417 (or 69410 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 25.

The square root of 3400747 is about 1844.1114391489. Note that the first 3 decimals coincide. The cubic root of 3400747 is about 150.3804711657.

The spelling of 3400747 in words is "three million, four hundred thousand, seven hundred forty-seven".