1376421929 has 2 divisors, whose sum is σ = 1376421930. Its totient is φ = 1376421928.

The previous prime is 1376421887. The next prime is 1376421971. The reversal of 1376421929 is 9291246731.

It is a balanced prime because it is at equal distance from previous prime (1376421887) and next prime (1376421971).

It can be written as a sum of positive squares in only one way, i.e., 970197904 + 406224025 = 31148^2 + 20155^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1376421929 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1376421929.

It is not a weakly prime, because it can be changed into another prime (1376421989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 688210964 + 688210965.

It is an arithmetic number, because the mean of its divisors is an integer number (688210965).

Almost surely, 2^1376421929 is an apocalyptic number.

It is an amenable number.

1376421929 is a deficient number, since it is larger than the sum of its proper divisors (1).

1376421929 is an equidigital number, since it uses as much as digits as its factorization.

1376421929 is an evil number, because the sum of its binary digits is even.

The product of its digits is 163296, while the sum is 44.

The square root of 1376421929 is about 37100.1607678457. The cubic root of 1376421929 is about 1112.3732273842.

The spelling of 1376421929 in words is "one billion, three hundred seventy-six million, four hundred twenty-one thousand, nine hundred twenty-nine".