1906490701 has 2 divisors, whose sum is σ = 1906490702. Its totient is φ = 1906490700.

The previous prime is 1906490689. The next prime is 1906490713. The reversal of 1906490701 is 1070946091.

It is the 17826-th star number.

It is a balanced prime because it is at equal distance from previous prime (1906490689) and next prime (1906490713).

It can be written as a sum of positive squares in only one way, i.e., 1904013225 + 2477476 = 43635^2 + 1574^2 .

It is a cyclic number.

It is not a de Polignac number, because 1906490701 - 2²¹ = 1904393549 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1906490771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 953245350 + 953245351.

It is an arithmetic number, because the mean of its divisors is an integer number (953245351).

Almost surely, 2^1906490701 is an apocalyptic number.

It is an amenable number.

1906490701 is a deficient number, since it is larger than the sum of its proper divisors (1).

1906490701 is an equidigital number, since it uses as much as digits as its factorization.

1906490701 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13608, while the sum is 37.

The square root of 1906490701 is about 43663.3794042559. The cubic root of 1906490701 is about 1239.9711016939.

The spelling of 1906490701 in words is "one billion, nine hundred six million, four hundred ninety thousand, seven hundred one".