3721026 has 8 divisors (see below), whose sum is σ = 7442064. Its totient is φ = 1240340.

The previous prime is 3720989. The next prime is 3721027. The reversal of 3721026 is 6201273.

It is a happy number.

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

3721026 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 3720993 and 3721011.

It is not an unprimeable number, because it can be changed into a prime (3721027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 310080 + ... + 310091.

It is an arithmetic number, because the mean of its divisors is an integer number (930258).

Almost surely, 2^3721026 is an apocalyptic number.

3721026 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3721026 is a wasteful number, since it uses less digits than its factorization.

3721026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 620176.

The product of its (nonzero) digits is 504, while the sum is 21.

The square root of 3721026 is about 1928.9961119712. The cubic root of 3721026 is about 154.9604616460.

Adding to 3721026 its reverse (6201273), we get a palindrome (9922299).

The spelling of 3721026 in words is "three million, seven hundred twenty-one thousand, twenty-six".