3798978 has 16 divisors (see below), whose sum is σ = 7783776. Its totient is φ = 1235360.

The previous prime is 3798961. The next prime is 3798983. The reversal of 3798978 is 8798973.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 3798978.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7476 + ... + 7967.

It is an arithmetic number, because the mean of its divisors is an integer number (486486).

Almost surely, 2^3798978 is an apocalyptic number.

3798978 is an abundant number, since it is smaller than the sum of its proper divisors (3984798).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3798978 is a wasteful number, since it uses less digits than its factorization.

3798978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15489.

The product of its digits is 762048, while the sum is 51.

The square root of 3798978 is about 1949.0967138652. The cubic root of 3798978 is about 156.0350841537.

The spelling of 3798978 in words is "three million, seven hundred ninety-eight thousand, nine hundred seventy-eight".