1437421 has 2 divisors, whose sum is σ = 1437422. Its totient is φ = 1437420.

The previous prime is 1437409. The next prime is 1437427. The reversal of 1437421 is 1247341.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1322500 + 114921 = 1150^2 + 339^2 .

It is a cyclic number.

It is not a de Polignac number, because 1437421 - 2⁵ = 1437389 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1437392 and 1437401.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1437427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 718710 + 718711.

It is an arithmetic number, because the mean of its divisors is an integer number (718711).

2^1437421 is an apocalyptic number.

It is an amenable number.

1437421 is a deficient number, since it is larger than the sum of its proper divisors (1).

1437421 is an equidigital number, since it uses as much as digits as its factorization.

1437421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 672, while the sum is 22.

The square root of 1437421 is about 1198.9249350981. The cubic root of 1437421 is about 112.8568684041.

The spelling of 1437421 in words is "one million, four hundred thirty-seven thousand, four hundred twenty-one".