3897723 has 8 divisors (see below), whose sum is σ = 5364736. Its totient is φ = 2514600.

The previous prime is 3897721. The next prime is 3897727. The reversal of 3897723 is 3277983.

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

It is not a de Polignac number, because 3897723 - 2¹ = 3897721 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3897721) 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, 20863 + ... + 21048.

It is an arithmetic number, because the mean of its divisors is an integer number (670592).

Almost surely, 2^3897723 is an apocalyptic number.

3897723 is a deficient number, since it is larger than the sum of its proper divisors (1467013).

3897723 is a wasteful number, since it uses less digits than its factorization.

3897723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41945.

The product of its digits is 63504, while the sum is 39.

The square root of 3897723 is about 1974.2651797568. The cubic root of 3897723 is about 157.3754520524.

The spelling of 3897723 in words is "three million, eight hundred ninety-seven thousand, seven hundred twenty-three".