3926642 has 4 divisors (see below), whose sum is σ = 5889966. Its totient is φ = 1963320.

The previous prime is 3926641. The next prime is 3926651. The reversal of 3926642 is 2466293.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2466293 = 491 ⋅5023.

It can be written as a sum of positive squares in only one way, i.e., 3916441 + 10201 = 1979^2 + 101^2 .

It is a junction number, because it is equal to n+sod(n) for n = 3926599 and 3926608.

It is not an unprimeable number, because it can be changed into a prime (3926641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 981659 + ... + 981662.

Almost surely, 2^3926642 is an apocalyptic number.

3926642 is a deficient number, since it is larger than the sum of its proper divisors (1963324).

3926642 is a wasteful number, since it uses less digits than its factorization.

3926642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1963323.

The product of its digits is 15552, while the sum is 32.

The square root of 3926642 is about 1981.5756357000. The cubic root of 3926642 is about 157.7637070409.

The spelling of 3926642 in words is "three million, nine hundred twenty-six thousand, six hundred forty-two".