3707407661 has 4 divisors (see below), whose sum is σ = 3902534400. Its totient is φ = 3512280924.

The previous prime is 3707407633. The next prime is 3707407663. The reversal of 3707407661 is 1667047073.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1667047073 = 3889 ⋅428657.

It is a cyclic number.

It is not a de Polignac number, because 3707407661 - 2¹⁸ = 3707145517 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 (3707407663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 97563341 + ... + 97563378.

It is an arithmetic number, because the mean of its divisors is an integer number (975633600).

Almost surely, 2^3707407661 is an apocalyptic number.

It is an amenable number.

3707407661 is a deficient number, since it is larger than the sum of its proper divisors (195126739).

3707407661 is a wasteful number, since it uses less digits than its factorization.

3707407661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195126738.

The product of its (nonzero) digits is 148176, while the sum is 41.

The square root of 3707407661 is about 60888.4854549692. The cubic root of 3707407661 is about 1547.7118734369.

The spelling of 3707407661 in words is "three billion, seven hundred seven million, four hundred seven thousand, six hundred sixty-one".