1406997373 has 2 divisors, whose sum is σ = 1406997374. Its totient is φ = 1406997372.

The previous prime is 1406997359. The next prime is 1406997457. The reversal of 1406997373 is 3737996041.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1404975289 + 2022084 = 37483^2 + 1422^2 .

It is a cyclic number.

It is not a de Polignac number, because 1406997373 - 2¹⁷ = 1406866301 is a prime.

It is a super-2 number, since 2×1406997373² = 3959283215257802258, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1406997343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 703498686 + 703498687.

It is an arithmetic number, because the mean of its divisors is an integer number (703498687).

Almost surely, 2^1406997373 is an apocalyptic number.

It is an amenable number.

1406997373 is a deficient number, since it is larger than the sum of its proper divisors (1).

1406997373 is an equidigital number, since it uses as much as digits as its factorization.

1406997373 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 857304, while the sum is 49.

The square root of 1406997373 is about 37509.9636496758. The cubic root of 1406997373 is about 1120.5496273944.

The spelling of 1406997373 in words is "one billion, four hundred six million, nine hundred ninety-seven thousand, three hundred seventy-three".