3749736461 has 8 divisors (see below), whose sum is σ = 3977657784. Its totient is φ = 3522631680.

The previous prime is 3749736457. The next prime is 3749736491. The reversal of 3749736461 is 1646379473.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 134119561 + 3615616900 = 11581^2 + 60130^2 .

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 3749736461 - 2² = 3749736457 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 (3749736451) 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, 194660 + ... + 213053.

It is an arithmetic number, because the mean of its divisors is an integer number (497207223).

Almost surely, 2^3749736461 is an apocalyptic number.

It is an amenable number.

3749736461 is a deficient number, since it is larger than the sum of its proper divisors (227921323).

3749736461 is a wasteful number, since it uses less digits than its factorization.

3749736461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 408271.

The product of its digits is 2286144, while the sum is 50.

The square root of 3749736461 is about 61235.0917448484. The cubic root of 3749736461 is about 1553.5798575933.

The spelling of 3749736461 in words is "three billion, seven hundred forty-nine million, seven hundred thirty-six thousand, four hundred sixty-one".