4060807721 has 4 divisors (see below), whose sum is σ = 4084280772. Its totient is φ = 4037334672.

The previous prime is 4060807687. The next prime is 4060807733. The reversal of 4060807721 is 1277080604.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2621440000 + 1439367721 = 51200^2 + 37939^2 .

It is a cyclic number.

It is not a de Polignac number, because 4060807721 - 2³⁰ = 2987065897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4060807741) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11736266 + ... + 11736611.

It is an arithmetic number, because the mean of its divisors is an integer number (1021070193).

Almost surely, 2^4060807721 is an apocalyptic number.

It is an amenable number.

4060807721 is a deficient number, since it is larger than the sum of its proper divisors (23473051).

4060807721 is a wasteful number, since it uses less digits than its factorization.

4060807721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23473050.

The product of its (nonzero) digits is 18816, while the sum is 35.

The square root of 4060807721 is about 63724.4672084436. The cubic root of 4060807721 is about 1595.4044854207.

The spelling of 4060807721 in words is "four billion, sixty million, eight hundred seven thousand, seven hundred twenty-one".