3891298 has 4 divisors (see below), whose sum is σ = 5836950. Its totient is φ = 1945648.

The previous prime is 3891287. The next prime is 3891323. The reversal of 3891298 is 8921983.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 3790809 + 100489 = 1947^2 + 317^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a plaindrome in base 12.

It is a self number, because there is not a number n which added to its sum of digits gives 3891298.

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, 972823 + ... + 972826.

Almost surely, 2^3891298 is an apocalyptic number.

3891298 is a deficient number, since it is larger than the sum of its proper divisors (1945652).

3891298 is a wasteful number, since it uses less digits than its factorization.

3891298 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1945651.

The product of its digits is 31104, while the sum is 40.

The square root of 3891298 is about 1972.6373209488. The cubic root of 3891298 is about 157.2889320188.

The spelling of 3891298 in words is "three million, eight hundred ninety-one thousand, two hundred ninety-eight".