1426960621 has 2 divisors, whose sum is σ = 1426960622. Its totient is φ = 1426960620.

The previous prime is 1426960589. The next prime is 1426960643. The reversal of 1426960621 is 1260696241.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 755425225 + 671535396 = 27485^2 + 25914^2 .

It is a cyclic number.

It is not a de Polignac number, because 1426960621 - 2⁵ = 1426960589 is a prime.

It is a super-2 number, since 2×1426960621² = 4072433227769411282, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1426960681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 713480310 + 713480311.

It is an arithmetic number, because the mean of its divisors is an integer number (713480311).

Almost surely, 2^1426960621 is an apocalyptic number.

It is an amenable number.

1426960621 is a deficient number, since it is larger than the sum of its proper divisors (1).

1426960621 is an equidigital number, since it uses as much as digits as its factorization.

1426960621 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 1426960621 is about 37775.1323094969. The cubic root of 1426960621 is about 1125.8244152324.

The spelling of 1426960621 in words is "one billion, four hundred twenty-six million, nine hundred sixty thousand, six hundred twenty-one".