1247622 has 16 divisors (see below), whose sum is σ = 2507760. Its totient is φ = 413792.

The previous prime is 1247621. The next prime is 1247627. The reversal of 1247622 is 2267421.

It is a d-powerful number, because it can be written as 1 + 2¹⁷ + 4⁸ + 7⁴ + 6² + 2¹⁹ + 2¹⁹ .

It is a junction number, because it is equal to n+sod(n) for n = 1247592 and 1247601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1247621) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1228 + ... + 2000.

It is an arithmetic number, because the mean of its divisors is an integer number (156735).

2^1247622 is an apocalyptic number.

1247622 is an abundant number, since it is smaller than the sum of its proper divisors (1260138).

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

1247622 is a wasteful number, since it uses less digits than its factorization.

1247622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1047.

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

The square root of 1247622 is about 1116.9700085499. The cubic root of 1247622 is about 107.6533811956.

It can be divided in two parts, 12476 and 22, that multiplied together give a palindrome (274472).

The spelling of 1247622 in words is "one million, two hundred forty-seven thousand, six hundred twenty-two".