1364621 has 2 divisors, whose sum is σ = 1364622. Its totient is φ = 1364620.

The previous prime is 1364617. The next prime is 1364633. The reversal of 1364621 is 1264631.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1357225 + 7396 = 1165^2 + 86^2 .

It is a cyclic number.

It is not a de Polignac number, because 1364621 - 2² = 1364617 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1364221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 682310 + 682311.

It is an arithmetic number, because the mean of its divisors is an integer number (682311).

2^1364621 is an apocalyptic number.

It is an amenable number.

1364621 is a deficient number, since it is larger than the sum of its proper divisors (1).

1364621 is an equidigital number, since it uses as much as digits as its factorization.

1364621 is an evil number, because the sum of its binary digits is even.

The product of its digits is 864, while the sum is 23.

The square root of 1364621 is about 1168.1699362678. The cubic root of 1364621 is about 110.9185074013.

The spelling of 1364621 in words is "one million, three hundred sixty-four thousand, six hundred twenty-one".