3651516 has 36 divisors (see below), whose sum is σ = 10070424. Its totient is φ = 1106400.

The previous prime is 3651497. The next prime is 3651539. The reversal of 3651516 is 6151563.

It is a happy number.

3651516 is a `hidden beast` number, since 3 + 651 + 5 + 1 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a self number, because there is not a number n which added to its sum of digits gives 3651516.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4215 + ... + 5006.

It is an arithmetic number, because the mean of its divisors is an integer number (279734).

Almost surely, 2^3651516 is an apocalyptic number.

3651516 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

3651516 is an abundant number, since it is smaller than the sum of its proper divisors (6418908).

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

3651516 is a wasteful number, since it uses less digits than its factorization.

3651516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9242 (or 9237 counting only the distinct ones).

The product of its digits is 2700, while the sum is 27.

The square root of 3651516 is about 1910.8940315988. The cubic root of 3651516 is about 153.9894859860.

It can be divided in two parts, 365 and 1516, that added together give a palindrome (1881).

The spelling of 3651516 in words is "three million, six hundred fifty-one thousand, five hundred sixteen".