3978037 has 8 divisors (see below), whose sum is σ = 4558400. Its totient is φ = 3400704.

The previous prime is 3978031. The next prime is 3978043. The reversal of 3978037 is 7308793.

It is an interprime number because it is at equal distance from previous prime (3978031) and next prime (3978043).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3978037 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3977987 and 3978005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3978031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4789 + ... + 5557.

It is an arithmetic number, because the mean of its divisors is an integer number (569800).

Almost surely, 2^3978037 is an apocalyptic number.

It is an amenable number.

3978037 is a deficient number, since it is larger than the sum of its proper divisors (580363).

3978037 is an equidigital number, since it uses as much as digits as its factorization.

3978037 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1515.

The product of its (nonzero) digits is 31752, while the sum is 37.

The square root of 3978037 is about 1994.5016921527. The cubic root of 3978037 is about 158.4490377413.

The spelling of 3978037 in words is "three million, nine hundred seventy-eight thousand, thirty-seven".