3947798 has 8 divisors (see below), whose sum is σ = 6018960. Its totient is φ = 1941480.

The previous prime is 3947771. The next prime is 3947807. The reversal of 3947798 is 8977493.

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

It is a Curzon number.

It is a congruent number.

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, 16058 + ... + 16301.

It is an arithmetic number, because the mean of its divisors is an integer number (752370).

Almost surely, 2^3947798 is an apocalyptic number.

3947798 is a deficient number, since it is larger than the sum of its proper divisors (2071162).

3947798 is a wasteful number, since it uses less digits than its factorization.

3947798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32422.

The product of its digits is 381024, while the sum is 47.

The square root of 3947798 is about 1986.9066409874. The cubic root of 3947798 is about 158.0465333216.

It can be divided in two parts, 394 and 7798, that added together give a 13-th power (8192 = 2¹³).

The spelling of 3947798 in words is "three million, nine hundred forty-seven thousand, seven hundred ninety-eight".