1046626421 has 2 divisors, whose sum is σ = 1046626422. Its totient is φ = 1046626420.

The previous prime is 1046626387. The next prime is 1046626463. The reversal of 1046626421 is 1246266401.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 828000625 + 218625796 = 28775^2 + 14786^2 .

It is a cyclic number.

It is not a de Polignac number, because 1046626421 - 2²⁶ = 979517557 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1046626481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 523313210 + 523313211.

It is an arithmetic number, because the mean of its divisors is an integer number (523313211).

Almost surely, 2^1046626421 is an apocalyptic number.

It is an amenable number.

1046626421 is a deficient number, since it is larger than the sum of its proper divisors (1).

1046626421 is an equidigital number, since it uses as much as digits as its factorization.

1046626421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 1046626421 is about 32351.6061579638. The cubic root of 1046626421 is about 1015.3066513414.

The spelling of 1046626421 in words is "one billion, forty-six million, six hundred twenty-six thousand, four hundred twenty-one".