1406722693 has 2 divisors, whose sum is σ = 1406722694. Its totient is φ = 1406722692.

The previous prime is 1406722651. The next prime is 1406722699. The reversal of 1406722693 is 3962276041.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 916454529 + 490268164 = 30273^2 + 22142^2 .

It is an emirp because it is prime and its reverse (3962276041) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1406722693 - 2¹³ = 1406714501 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1406722699) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 703361346 + 703361347.

It is an arithmetic number, because the mean of its divisors is an integer number (703361347).

Almost surely, 2^1406722693 is an apocalyptic number.

It is an amenable number.

1406722693 is a deficient number, since it is larger than the sum of its proper divisors (1).

1406722693 is an equidigital number, since it uses as much as digits as its factorization.

1406722693 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108864, while the sum is 40.

The square root of 1406722693 is about 37506.3020437899. The cubic root of 1406722693 is about 1120.4767031636.

The spelling of 1406722693 in words is "one billion, four hundred six million, seven hundred twenty-two thousand, six hundred ninety-three".