1107726421 has 2 divisors, whose sum is σ = 1107726422. Its totient is φ = 1107726420.

The previous prime is 1107726401. The next prime is 1107726481. The reversal of 1107726421 is 1246277011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 782320900 + 325405521 = 27970^2 + 18039^2 .

It is a cyclic number.

It is not a de Polignac number, because 1107726421 - 2⁹ = 1107725909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1107726401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 553863210 + 553863211.

It is an arithmetic number, because the mean of its divisors is an integer number (553863211).

Almost surely, 2^1107726421 is an apocalyptic number.

It is an amenable number.

1107726421 is a deficient number, since it is larger than the sum of its proper divisors (1).

1107726421 is an equidigital number, since it uses as much as digits as its factorization.

1107726421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4704, while the sum is 31.

The square root of 1107726421 is about 33282.5242582350. The cubic root of 1107726421 is about 1034.6913970212.

The spelling of 1107726421 in words is "one billion, one hundred seven million, seven hundred twenty-six thousand, four hundred twenty-one".