3700677721 has 8 divisors (see below), whose sum is σ = 4002453000. Its totient is φ = 3401346432.

The previous prime is 3700677719. The next prime is 3700677763. The reversal of 3700677721 is 1277760073.

It can be written as a sum of positive squares in 4 ways, for example, as 410508121 + 3290169600 = 20261^2 + 57360^2 .

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 3700677721 - 2¹ = 3700677719 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3700677121) 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, 607846 + ... + 613903.

It is an arithmetic number, because the mean of its divisors is an integer number (500306625).

Almost surely, 2^3700677721 is an apocalyptic number.

It is an amenable number.

3700677721 is a deficient number, since it is larger than the sum of its proper divisors (301775279).

3700677721 is a wasteful number, since it uses less digits than its factorization.

3700677721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1221995.

The product of its (nonzero) digits is 86436, while the sum is 40.

The square root of 3700677721 is about 60833.1958802100. The cubic root of 3700677721 is about 1546.7748020402.

The spelling of 3700677721 in words is "three billion, seven hundred million, six hundred seventy-seven thousand, seven hundred twenty-one".