421074653 has 2 divisors, whose sum is σ = 421074654. Its totient is φ = 421074652.

The previous prime is 421074623. The next prime is 421074671. The reversal of 421074653 is 356470124.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 382671844 + 38402809 = 19562^2 + 6197^2 .

It is a cyclic number.

It is not a de Polignac number, because 421074653 - 2¹² = 421070557 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (421074613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210537326 + 210537327.

It is an arithmetic number, because the mean of its divisors is an integer number (210537327).

Almost surely, 2^421074653 is an apocalyptic number.

It is an amenable number.

421074653 is a deficient number, since it is larger than the sum of its proper divisors (1).

421074653 is an equidigital number, since it uses as much as digits as its factorization.

421074653 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20160, while the sum is 32.

The square root of 421074653 is about 20520.1036303426. The cubic root of 421074653 is about 749.5254200581.

The spelling of 421074653 in words is "four hundred twenty-one million, seventy-four thousand, six hundred fifty-three".