3998607 has 32 divisors (see below), whose sum is σ = 6048000. Its totient is φ = 2338560.

The previous prime is 3998591. The next prime is 3998609. The reversal of 3998607 is 7068993.

It is a happy number.

It is not a de Polignac number, because 3998607 - 2⁴ = 3998591 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3998609) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 67744 + ... + 67802.

It is an arithmetic number, because the mean of its divisors is an integer number (189000).

Almost surely, 2^3998607 is an apocalyptic number.

3998607 is a deficient number, since it is larger than the sum of its proper divisors (2049393).

3998607 is a wasteful number, since it uses less digits than its factorization.

3998607 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151.

The product of its (nonzero) digits is 81648, while the sum is 42.

The square root of 3998607 is about 1999.6517196752. The cubic root of 3998607 is about 158.7216759768.

The spelling of 3998607 in words is "three million, nine hundred ninety-eight thousand, six hundred seven".