1405373797 has 2 divisors, whose sum is σ = 1405373798. Its totient is φ = 1405373796.

The previous prime is 1405373789. The next prime is 1405373803. The reversal of 1405373797 is 7973735041.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 797554081 + 607819716 = 28241^2 + 24654^2 .

It is a cyclic number.

It is not a de Polignac number, because 1405373797 - 2³ = 1405373789 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1405373737) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 702686898 + 702686899.

It is an arithmetic number, because the mean of its divisors is an integer number (702686899).

Almost surely, 2^1405373797 is an apocalyptic number.

It is an amenable number.

1405373797 is a deficient number, since it is larger than the sum of its proper divisors (1).

1405373797 is an equidigital number, since it uses as much as digits as its factorization.

1405373797 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 555660, while the sum is 46.

The square root of 1405373797 is about 37488.3154729577. The cubic root of 1405373797 is about 1120.1184496855.

The spelling of 1405373797 in words is "one billion, four hundred five million, three hundred seventy-three thousand, seven hundred ninety-seven".