3998302526 has 4 divisors (see below), whose sum is σ = 5997453792. Its totient is φ = 1999151262.

The previous prime is 3998302507. The next prime is 3998302537. The reversal of 3998302526 is 6252038993.

It is a happy number.

3998302526 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6252038993 = 83 ⋅75325771.

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 as a sum of consecutive naturals, namely, 999575630 + ... + 999575633.

It is an arithmetic number, because the mean of its divisors is an integer number (1499363448).

Almost surely, 2^3998302526 is an apocalyptic number.

3998302526 is a deficient number, since it is larger than the sum of its proper divisors (1999151266).

3998302526 is a wasteful number, since it uses less digits than its factorization.

3998302526 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1999151265.

The product of its (nonzero) digits is 699840, while the sum is 47.

The square root of 3998302526 is about 63232.1320690675. The cubic root of 3998302526 is about 1587.1764725293.

The spelling of 3998302526 in words is "three billion, nine hundred ninety-eight million, three hundred two thousand, five hundred twenty-six".