1376820047 has 16 divisors (see below), whose sum is σ = 1483920000. Its totient is φ = 1273487904.

The previous prime is 1376820023. The next prime is 1376820073. The reversal of 1376820047 is 7400286731.

It is a cyclic number.

It is not a de Polignac number, because 1376820047 - 2⁸ = 1376819791 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1376820017) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 162908 + ... + 171150.

It is an arithmetic number, because the mean of its divisors is an integer number (92745000).

Almost surely, 2^1376820047 is an apocalyptic number.

1376820047 is a deficient number, since it is larger than the sum of its proper divisors (107099953).

1376820047 is a wasteful number, since it uses less digits than its factorization.

1376820047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8470.

The product of its (nonzero) digits is 56448, while the sum is 38.

The square root of 1376820047 is about 37105.5258283722. The cubic root of 1376820047 is about 1112.4804651201.

The spelling of 1376820047 in words is "one billion, three hundred seventy-six million, eight hundred twenty thousand, forty-seven".