3701621 has 8 divisors (see below), whose sum is σ = 4615104. Its totient is φ = 2884320.

The previous prime is 3701587. The next prime is 3701623. The reversal of 3701621 is 1261073.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3701621 - 2⁶ = 3701557 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 3701593 and 3701602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3701623) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23960 + ... + 24113.

It is an arithmetic number, because the mean of its divisors is an integer number (576888).

Almost surely, 2^3701621 is an apocalyptic number.

It is an amenable number.

3701621 is a deficient number, since it is larger than the sum of its proper divisors (913483).

3701621 is a wasteful number, since it uses less digits than its factorization.

3701621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48091.

The product of its (nonzero) digits is 252, while the sum is 20.

The square root of 3701621 is about 1923.9597189131. The cubic root of 3701621 is about 154.6906211866.

Adding to 3701621 its reverse (1261073), we get a palindrome (4962694).

It can be divided in two parts, 370 and 1621, that added together give a palindrome (1991).

The spelling of 3701621 in words is "three million, seven hundred one thousand, six hundred twenty-one".