3621207 has 8 divisors (see below), whose sum is σ = 4886784. Its totient is φ = 2384888.

The previous prime is 3621199. The next prime is 3621217. The reversal of 3621207 is 7021263.

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 3621207 - 2³ = 3621199 is a prime.

It is a super-2 number, since 2×3621207² = 26226280273698, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3621217) 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, 7023 + ... + 7520.

It is an arithmetic number, because the mean of its divisors is an integer number (610848).

Almost surely, 2^3621207 is an apocalyptic number.

3621207 is a deficient number, since it is larger than the sum of its proper divisors (1265577).

3621207 is a wasteful number, since it uses less digits than its factorization.

3621207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14629.

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

The square root of 3621207 is about 1902.9469251663. The cubic root of 3621207 is about 153.5622442059.

It can be divided in two parts, 3621 and 207, that added together give a triangular number (3828 = T₈₇).

The spelling of 3621207 in words is "three million, six hundred twenty-one thousand, two hundred seven".