3922778 has 8 divisors (see below), whose sum is σ = 6193920. Its totient is φ = 1858140.

The previous prime is 3922769. The next prime is 3922781. The reversal of 3922778 is 8772293.

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

It is a Harshad number since it is a multiple of its sum of digits (38), and also a Moran number because the ratio is a prime number: 103231 = 3922778 / (3 + 9 + 2 + 2 + 7 + 7 + 8).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51578 + ... + 51653.

It is an arithmetic number, because the mean of its divisors is an integer number (774240).

Almost surely, 2^3922778 is an apocalyptic number.

3922778 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

3922778 is a deficient number, since it is larger than the sum of its proper divisors (2271142).

3922778 is a wasteful number, since it uses less digits than its factorization.

3922778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103252.

The product of its digits is 42336, while the sum is 38.

The square root of 3922778 is about 1980.6004140159. The cubic root of 3922778 is about 157.7119410933.

The spelling of 3922778 in words is "three million, nine hundred twenty-two thousand, seven hundred seventy-eight".