1431793 has 6 divisors (see below), whose sum is σ = 1573922. Its totient is φ = 1301520.

The previous prime is 1431779. The next prime is 1431799. The reversal of 1431793 is 3971341.

It is the 489-th star number.

It can be written as a sum of positive squares in only one way, i.e., 1411344 + 20449 = 1188^2 + 143^2 .

It is a de Polignac number, because none of the positive numbers 2^k-1431793 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1431799) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5796 + ... + 6037.

2^1431793 is an apocalyptic number.

It is an amenable number.

1431793 is a deficient number, since it is larger than the sum of its proper divisors (142129).

1431793 is a wasteful number, since it uses less digits than its factorization.

1431793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11855 (or 11844 counting only the distinct ones).

The product of its digits is 2268, while the sum is 28.

The square root of 1431793 is about 1196.5755304200. The cubic root of 1431793 is about 112.7093845382.

It can be divided in two parts, 143 and 1793, that added together give a square (1936 = 44²).

The spelling of 1431793 in words is "one million, four hundred thirty-one thousand, seven hundred ninety-three".