4078657 has 12 divisors (see below), whose sum is σ = 4730256. Its totient is φ = 3487040.

The previous prime is 4078651. The next prime is 4078663. The reversal of 4078657 is 7568704.

It is a happy number.

4078657 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (4078651) and next prime (4078663).

It is not a de Polignac number, because 4078657 - 2³ = 4078649 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4078651) 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 11 ways as a sum of consecutive naturals, for example, 2538 + ... + 3820.

It is an arithmetic number, because the mean of its divisors is an integer number (394188).

Almost surely, 2^4078657 is an apocalyptic number.

It is an amenable number.

4078657 is a deficient number, since it is larger than the sum of its proper divisors (651599).

4078657 is a wasteful number, since it uses less digits than its factorization.

4078657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1328 (or 1311 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 37.

The square root of 4078657 is about 2019.5685182731. The cubic root of 4078657 is about 159.7738602181.

The spelling of 4078657 in words is "four million, seventy-eight thousand, six hundred fifty-seven".