3661740731 has 8 divisors (see below), whose sum is σ = 3999191664. Its totient is φ = 3325050720.

The previous prime is 3661740713. The next prime is 3661740769. The reversal of 3661740731 is 1370471663.

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 3661740731 - 2¹⁴ = 3661724347 is a prime.

It is a super-2 number, since 2×3661740731² = 26816690362128828722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3661740701) 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, 180140 + ... + 199433.

It is an arithmetic number, because the mean of its divisors is an integer number (499898958).

Almost surely, 2^3661740731 is an apocalyptic number.

3661740731 is a deficient number, since it is larger than the sum of its proper divisors (337450933).

3661740731 is a wasteful number, since it uses less digits than its factorization.

3661740731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 380461.

The product of its (nonzero) digits is 63504, while the sum is 38.

The square root of 3661740731 is about 60512.3188367460. The cubic root of 3661740731 is about 1541.3308239439.

The spelling of 3661740731 in words is "three billion, six hundred sixty-one million, seven hundred forty thousand, seven hundred thirty-one".