3646037461 has 12 divisors (see below), whose sum is σ = 4115947276. Its totient is φ = 3224992320.

The previous prime is 3646037431. The next prime is 3646037477. The reversal of 3646037461 is 1647306463.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1705194436 + 1940843025 = 41294^2 + 44055^2 .

It is not a de Polignac number, because 3646037461 - 2⁵ = 3646037429 is a prime.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3646037401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 402720 + ... + 411673.

Almost surely, 2^3646037461 is an apocalyptic number.

It is an amenable number.

3646037461 is a deficient number, since it is larger than the sum of its proper divisors (469909815).

3646037461 is a wasteful number, since it uses less digits than its factorization.

3646037461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 814452 (or 814441 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 40.

The square root of 3646037461 is about 60382.4267564662. The cubic root of 3646037461 is about 1539.1243491342.

The spelling of 3646037461 in words is "three billion, six hundred forty-six million, thirty-seven thousand, four hundred sixty-one".