3802978 has 4 divisors (see below), whose sum is σ = 5704470. Its totient is φ = 1901488.

The previous prime is 3802969. The next prime is 3802979. The reversal of 3802978 is 8792083.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 3508129 + 294849 = 1873^2 + 543^2 .

It is not an unprimeable number, because it can be changed into a prime (3802979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 950743 + ... + 950746.

Almost surely, 2^3802978 is an apocalyptic number.

3802978 is a deficient number, since it is larger than the sum of its proper divisors (1901492).

3802978 is a wasteful number, since it uses less digits than its factorization.

3802978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1901491.

The product of its (nonzero) digits is 24192, while the sum is 37.

The square root of 3802978 is about 1950.1225602510. The cubic root of 3802978 is about 156.0898288254.

The spelling of 3802978 in words is "three million, eight hundred two thousand, nine hundred seventy-eight".