3778977 has 4 divisors (see below), whose sum is σ = 5038640. Its totient is φ = 2519316.

The previous prime is 3778963. The next prime is 3778987. The reversal of 3778977 is 7798773.

3778977 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 7798773 = 3 ⋅2599591.

It is not a de Polignac number, because 3778977 - 2¹⁰ = 3777953 is a prime.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3778987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 629827 + ... + 629832.

It is an arithmetic number, because the mean of its divisors is an integer number (1259660).

Almost surely, 2^3778977 is an apocalyptic number.

It is an amenable number.

3778977 is a deficient number, since it is larger than the sum of its proper divisors (1259663).

3778977 is a wasteful number, since it uses less digits than its factorization.

3778977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1259662.

The product of its digits is 518616, while the sum is 48.

The square root of 3778977 is about 1943.9591045081. The cubic root of 3778977 is about 155.7607690853.

The spelling of 3778977 in words is "three million, seven hundred seventy-eight thousand, nine hundred seventy-seven".