1077421 has 2 divisors, whose sum is σ = 1077422. Its totient is φ = 1077420.

The previous prime is 1077413. The next prime is 1077449. The reversal of 1077421 is 1247701.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 864900 + 212521 = 930^2 + 461^2 .

It is a cyclic number.

It is not a de Polignac number, because 1077421 - 2³ = 1077413 is a prime.

It is a super-2 number, since 2×1077421² = 2321672022482, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1077392 and 1077401.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1077221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 538710 + 538711.

It is an arithmetic number, because the mean of its divisors is an integer number (538711).

2^1077421 is an apocalyptic number.

It is an amenable number.

1077421 is a deficient number, since it is larger than the sum of its proper divisors (1).

1077421 is an equidigital number, since it uses as much as digits as its factorization.

1077421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 392, while the sum is 22.

The square root of 1077421 is about 1037.9889209428. The cubic root of 1077421 is about 102.5168245236.

The spelling of 1077421 in words is "one million, seventy-seven thousand, four hundred twenty-one".