246886421 has 2 divisors, whose sum is σ = 246886422. Its totient is φ = 246886420.

The previous prime is 246886411. The next prime is 246886433. The reversal of 246886421 is 124688642.

246886421 = 11110² + 11111².

246886421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 123454321 + 123432100 = 11111^2 + 11110^2 .

It is a cyclic number.

It is not a de Polignac number, because 246886421 - 2²² = 242692117 is a prime.

It is a super-3 number, since 3×246886421³ (a number of 26 digits) contains 333 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (246886411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 123443210 + 123443211.

It is an arithmetic number, because the mean of its divisors is an integer number (123443211).

Almost surely, 2^246886421 is an apocalyptic number.

246886421 is the 11111-st centered square number.

It is an amenable number.

246886421 is a deficient number, since it is larger than the sum of its proper divisors (1).

246886421 is an equidigital number, since it uses as much as digits as its factorization.

246886421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 147456, while the sum is 41.

The square root of 246886421 is about 15712.6198006571. The cubic root of 246886421 is about 627.3343496971.

The spelling of 246886421 in words is "two hundred forty-six million, eight hundred eighty-six thousand, four hundred twenty-one".