3447090 has 64 divisors (see below), whose sum is σ = 9745920. Its totient is φ = 864000.

The previous prime is 3447077. The next prime is 3447091. The reversal of 3447090 is 907443.

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

It is not an unprimeable number, because it can be changed into a prime (3447091) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4215 + ... + 4965.

It is an arithmetic number, because the mean of its divisors is an integer number (152280).

Almost surely, 2^3447090 is an apocalyptic number.

3447090 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 3447090, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4872960).

3447090 is an abundant number, since it is smaller than the sum of its proper divisors (6298830).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3447090 is a wasteful number, since it uses less digits than its factorization.

3447090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 784 (or 778 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 3447090 is about 1856.6340511797. The cubic root of 3447090 is about 151.0604848109.

The spelling of 3447090 in words is "three million, four hundred forty-seven thousand, ninety".