1406734661 has 2 divisors, whose sum is σ = 1406734662. Its totient is φ = 1406734660.

The previous prime is 1406734631. The next prime is 1406734691. The reversal of 1406734661 is 1664376041.

It is a balanced prime because it is at equal distance from previous prime (1406734631) and next prime (1406734691).

It can be written as a sum of positive squares in only one way, i.e., 760049761 + 646684900 = 27569^2 + 25430^2 .

It is a cyclic number.

It is not a de Polignac number, because 1406734661 - 2³⁰ = 332992837 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1406734631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 703367330 + 703367331.

It is an arithmetic number, because the mean of its divisors is an integer number (703367331).

Almost surely, 2^1406734661 is an apocalyptic number.

It is an amenable number.

1406734661 is a deficient number, since it is larger than the sum of its proper divisors (1).

1406734661 is an equidigital number, since it uses as much as digits as its factorization.

1406734661 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72576, while the sum is 38.

The square root of 1406734661 is about 37506.4615899714. The cubic root of 1406734661 is about 1120.4798807212.

The spelling of 1406734661 in words is "one billion, four hundred six million, seven hundred thirty-four thousand, six hundred sixty-one".