1377408029 has 2 divisors, whose sum is σ = 1377408030. Its totient is φ = 1377408028.

The previous prime is 1377407987. The next prime is 1377408037. The reversal of 1377408029 is 9208047731.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 840420100 + 536987929 = 28990^2 + 23173^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1377408029 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1377408049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 688704014 + 688704015.

It is an arithmetic number, because the mean of its divisors is an integer number (688704015).

Almost surely, 2^1377408029 is an apocalyptic number.

It is an amenable number.

1377408029 is a deficient number, since it is larger than the sum of its proper divisors (1).

1377408029 is an equidigital number, since it uses as much as digits as its factorization.

1377408029 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 84672, while the sum is 41.

The square root of 1377408029 is about 37113.4480882604. The cubic root of 1377408029 is about 1112.6388071384.

The spelling of 1377408029 in words is "one billion, three hundred seventy-seven million, four hundred eight thousand, twenty-nine".