3661190285 has 4 divisors (see below), whose sum is σ = 4393428348. Its totient is φ = 2928952224.

The previous prime is 3661190263. The next prime is 3661190287. The reversal of 3661190285 is 5820911663.

3661190285 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5820911663 = 7 ⋅831558809.

It can be written as a sum of positive squares in 2 ways, for example, as 541074121 + 3120116164 = 23261^2 + 55858^2 .

It is a cyclic number.

It is not a de Polignac number, because 3661190285 - 2¹² = 3661186189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3661190287) 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, 366119024 + ... + 366119033.

It is an arithmetic number, because the mean of its divisors is an integer number (1098357087).

Almost surely, 2^3661190285 is an apocalyptic number.

It is an amenable number.

3661190285 is a deficient number, since it is larger than the sum of its proper divisors (732238063).

3661190285 is an equidigital number, since it uses as much as digits as its factorization.

3661190285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 732238062.

The product of its (nonzero) digits is 77760, while the sum is 41.

The square root of 3661190285 is about 60507.7704514057. The cubic root of 3661190285 is about 1541.2535872811.

The spelling of 3661190285 in words is "three billion, six hundred sixty-one million, one hundred ninety thousand, two hundred eighty-five".