1067621 has 2 divisors, whose sum is σ = 1067622. Its totient is φ = 1067620.

The previous prime is 1067611. The next prime is 1067639. The reversal of 1067621 is 1267601.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 592900 + 474721 = 770^2 + 689^2 .

It is a cyclic number.

It is not a de Polignac number, because 1067621 - 2⁶ = 1067557 is a prime.

It is a super-2 number, since 2×1067621² = 2279629199282, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1067611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 533810 + 533811.

It is an arithmetic number, because the mean of its divisors is an integer number (533811).

2^1067621 is an apocalyptic number.

It is an amenable number.

1067621 is a deficient number, since it is larger than the sum of its proper divisors (1).

1067621 is an equidigital number, since it uses as much as digits as its factorization.

1067621 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 504, while the sum is 23.

The square root of 1067621 is about 1033.2574703335. The cubic root of 1067621 is about 102.2050533460.

The spelling of 1067621 in words is "one million, sixty-seven thousand, six hundred twenty-one".