1376429 has 2 divisors, whose sum is σ = 1376430. Its totient is φ = 1376428.

The previous prime is 1376423. The next prime is 1376443. The reversal of 1376429 is 9246731.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 806404 + 570025 = 898^2 + 755^2 .

It is a cyclic number.

It is not a de Polignac number, because 1376429 - 2⁸ = 1376173 is a prime.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 1376395 and 1376404.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1376423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 688214 + 688215.

It is an arithmetic number, because the mean of its divisors is an integer number (688215).

2^1376429 is an apocalyptic number.

It is an amenable number.

1376429 is a deficient number, since it is larger than the sum of its proper divisors (1).

1376429 is an equidigital number, since it uses as much as digits as its factorization.

1376429 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9072, while the sum is 32.

The square root of 1376429 is about 1173.2131093710. The cubic root of 1376429 is about 111.2375132221.

The spelling of 1376429 in words is "one million, three hundred seventy-six thousand, four hundred twenty-nine".