3722057261 has 8 divisors (see below), whose sum is σ = 4025004984. Its totient is φ = 3421486080.

The previous prime is 3722057243. The next prime is 3722057279. The reversal of 3722057261 is 1627502273.

It is an interprime number because it is at equal distance from previous prime (3722057243) and next prime (3722057279).

It can be written as a sum of positive squares in 4 ways, for example, as 695957161 + 3026100100 = 26381^2 + 55010^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3722057261 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3722057201) 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, 590876 + ... + 597141.

It is an arithmetic number, because the mean of its divisors is an integer number (503125623).

Almost surely, 2^3722057261 is an apocalyptic number.

It is an amenable number.

3722057261 is a deficient number, since it is larger than the sum of its proper divisors (302947723).

3722057261 is a wasteful number, since it uses less digits than its factorization.

3722057261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1188271.

The product of its (nonzero) digits is 35280, while the sum is 35.

The square root of 3722057261 is about 61008.6654582773. The cubic root of 3722057261 is about 1549.7477579126.

The spelling of 3722057261 in words is "three billion, seven hundred twenty-two million, fifty-seven thousand, two hundred sixty-one".