1247064 has 64 divisors (see below), whose sum is σ = 3843840. Its totient is φ = 328320.

The previous prime is 1247063. The next prime is 1247089. The reversal of 1247064 is 4607421.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1247063) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1899 + ... + 2469.

It is an arithmetic number, because the mean of its divisors is an integer number (60060).

2^1247064 is an apocalyptic number.

1247064 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1247064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1921920).

1247064 is an abundant number, since it is smaller than the sum of its proper divisors (2596776).

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

1247064 is a wasteful number, since it uses less digits than its factorization.

1247064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 600 (or 596 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 1247064 is about 1116.7201977219. The cubic root of 1247064 is about 107.6373294469.

The spelling of 1247064 in words is "one million, two hundred forty-seven thousand, sixty-four".