3731642 has 4 divisors (see below), whose sum is σ = 5597466. Its totient is φ = 1865820.

The previous prime is 3731627. The next prime is 3731683. The reversal of 3731642 is 2461373.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2461373 = 53 ⋅46441.

It can be written as a sum of positive squares in only one way, i.e., 2588881 + 1142761 = 1609^2 + 1069^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 932909 + ... + 932912.

Almost surely, 2^3731642 is an apocalyptic number.

3731642 is a deficient number, since it is larger than the sum of its proper divisors (1865824).

3731642 is a wasteful number, since it uses less digits than its factorization.

3731642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1865823.

The product of its digits is 3024, while the sum is 26.

The square root of 3731642 is about 1931.7458424958. The cubic root of 3731642 is about 155.1076879125.

The spelling of 3731642 in words is "three million, seven hundred thirty-one thousand, six hundred forty-two".