1403983901 has 2 divisors, whose sum is σ = 1403983902. Its totient is φ = 1403983900.

The previous prime is 1403983843. The next prime is 1403983909. The reversal of 1403983901 is 1093893041.

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., 1372332025 + 31651876 = 37045^2 + 5626^2 .

It is a cyclic number.

It is not a de Polignac number, because 1403983901 - 2⁶ = 1403983837 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1403983909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 701991950 + 701991951.

It is an arithmetic number, because the mean of its divisors is an integer number (701991951).

Almost surely, 2^1403983901 is an apocalyptic number.

It is an amenable number.

1403983901 is a deficient number, since it is larger than the sum of its proper divisors (1).

1403983901 is an equidigital number, since it uses as much as digits as its factorization.

1403983901 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23328, while the sum is 38.

The square root of 1403983901 is about 37469.7731645122. The cubic root of 1403983901 is about 1119.7490671359.

The spelling of 1403983901 in words is "one billion, four hundred three million, nine hundred eighty-three thousand, nine hundred one".