3919797 has 12 divisors (see below), whose sum is σ = 6470880. Its totient is φ = 2239848.

The previous prime is 3919789. The next prime is 3919807. The reversal of 3919797 is 7979193.

It is not a de Polignac number, because 3919797 - 2³ = 3919789 is a prime.

It is a nude number because it is divisible by every one of its digits.

3919797 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3919717) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31047 + ... + 31172.

It is an arithmetic number, because the mean of its divisors is an integer number (539240).

Almost surely, 2^3919797 is an apocalyptic number.

It is an amenable number.

3919797 is a deficient number, since it is larger than the sum of its proper divisors (2551083).

3919797 is a wasteful number, since it uses less digits than its factorization.

3919797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62232 (or 62229 counting only the distinct ones).

The product of its digits is 107163, while the sum is 45.

The square root of 3919797 is about 1979.8477214170. The cubic root of 3919797 is about 157.6719814494.

The spelling of 3919797 in words is "three million, nine hundred nineteen thousand, seven hundred ninety-seven".