3777420447 has 8 divisors (see below), whose sum is σ = 5596178480. Its totient is φ = 2518280280.

The previous prime is 3777420377. The next prime is 3777420467. The reversal of 3777420447 is 7440247773.

3777420447 is a `hidden beast` number, since 377 + 74 + 204 + 4 + 7 = 666.

It is not a de Polignac number, because 3777420447 - 2¹¹ = 3777418399 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 (3777420467) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69952204 + ... + 69952257.

It is an arithmetic number, because the mean of its divisors is an integer number (699522310).

Almost surely, 2^3777420447 is an apocalyptic number.

3777420447 is a deficient number, since it is larger than the sum of its proper divisors (1818758033).

3777420447 is a wasteful number, since it uses less digits than its factorization.

3777420447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139904470 (or 139904464 counting only the distinct ones).

The product of its (nonzero) digits is 921984, while the sum is 45.

The square root of 3777420447 is about 61460.7227991992. The cubic root of 3777420447 is about 1557.3938029958.

The spelling of 3777420447 in words is "three billion, seven hundred seventy-seven million, four hundred twenty thousand, four hundred forty-seven".