3731018 has 4 divisors (see below), whose sum is σ = 5596530. Its totient is φ = 1865508.

The previous prime is 3731017. The next prime is 3731069. The reversal of 3731018 is 8101373.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8101373 = 7 ⋅1157339.

It can be written as a sum of positive squares in only one way, i.e., 3713329 + 17689 = 1927^2 + 133^2 .

It is a junction number, because it is equal to n+sod(n) for n = 3730984 and 3731002.

It is not an unprimeable number, because it can be changed into a prime (3731017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 932753 + ... + 932756.

Almost surely, 2^3731018 is an apocalyptic number.

3731018 is a deficient number, since it is larger than the sum of its proper divisors (1865512).

3731018 is a wasteful number, since it uses less digits than its factorization.

3731018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1865511.

The product of its (nonzero) digits is 504, while the sum is 23.

The square root of 3731018 is about 1931.5843238130. The cubic root of 3731018 is about 155.0990417997.

The spelling of 3731018 in words is "three million, seven hundred thirty-one thousand, eighteen".