3869997 has 8 divisors (see below), whose sum is σ = 5232960. Its totient is φ = 2543520.

The previous prime is 3869993. The next prime is 3870001. The reversal of 3869997 is 7999683.

It is an interprime number because it is at equal distance from previous prime (3869993) and next prime (3870001).

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

It is not a de Polignac number, because 3869997 - 2² = 3869993 is a prime.

3869997 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3869993) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8872 + ... + 9297.

It is an arithmetic number, because the mean of its divisors is an integer number (654120).

Almost surely, 2^3869997 is an apocalyptic number.

It is an amenable number.

3869997 is a deficient number, since it is larger than the sum of its proper divisors (1362963).

3869997 is a wasteful number, since it uses less digits than its factorization.

3869997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18243.

The product of its digits is 734832, while the sum is 51.

The square root of 3869997 is about 1967.2307947976. The cubic root of 3869997 is about 157.0014064001.

The spelling of 3869997 in words is "three million, eight hundred sixty-nine thousand, nine hundred ninety-seven".