1400798783 has 2 divisors, whose sum is σ = 1400798784. Its totient is φ = 1400798782.

The previous prime is 1400798779. The next prime is 1400798821. The reversal of 1400798783 is 3878970041.

It is a weak prime.

It is an emirp because it is prime and its reverse (3878970041) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1400798783 - 2² = 1400798779 is a prime.

It is a super-3 number, since 3×1400798783³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1400798683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 700399391 + 700399392.

It is an arithmetic number, because the mean of its divisors is an integer number (700399392).

Almost surely, 2^1400798783 is an apocalyptic number.

1400798783 is a deficient number, since it is larger than the sum of its proper divisors (1).

1400798783 is an equidigital number, since it uses as much as digits as its factorization.

1400798783 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 338688, while the sum is 47.

The square root of 1400798783 is about 37427.2465324394. The cubic root of 1400798783 is about 1118.9016610848.

The spelling of 1400798783 in words is "one billion, four hundred million, seven hundred ninety-eight thousand, seven hundred eighty-three".