3671842 has 4 divisors (see below), whose sum is σ = 5507766. Its totient is φ = 1835920.

The previous prime is 3671839. The next prime is 3671849. The reversal of 3671842 is 2481763.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2481763 = 1249 ⋅1987.

It can be written as a sum of positive squares in only one way, i.e., 2277081 + 1394761 = 1509^2 + 1181^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (3671849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 917959 + ... + 917962.

Almost surely, 2^3671842 is an apocalyptic number.

3671842 is a deficient number, since it is larger than the sum of its proper divisors (1835924).

3671842 is a wasteful number, since it uses less digits than its factorization.

3671842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1835923.

The product of its digits is 8064, while the sum is 31.

The square root of 3671842 is about 1916.2051038446. The cubic root of 3671842 is about 154.2746826491.

It can be divided in two parts, 367 and 1842, that added together give a square (2209 = 47²).

The spelling of 3671842 in words is "three million, six hundred seventy-one thousand, eight hundred forty-two".