3721456347 has 16 divisors (see below), whose sum is σ = 5671787520. Its totient is φ = 2126172672.

The previous prime is 3721456303. The next prime is 3721456351. The reversal of 3721456347 is 7436541273.

It is not a de Polignac number, because 3721456347 - 2⁶ = 3721456283 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3721456299 and 3721456308.

It is not an unprimeable number, because it can be changed into a prime (3721456357) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 145438 + ... + 169100.

It is an arithmetic number, because the mean of its divisors is an integer number (354486720).

Almost surely, 2^3721456347 is an apocalyptic number.

3721456347 is a deficient number, since it is larger than the sum of its proper divisors (1950331173).

3721456347 is a wasteful number, since it uses less digits than its factorization.

3721456347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31162.

The product of its digits is 423360, while the sum is 42.

The square root of 3721456347 is about 61003.7404345012. The cubic root of 3721456347 is about 1549.6643528510.

The spelling of 3721456347 in words is "three billion, seven hundred twenty-one million, four hundred fifty-six thousand, three hundred forty-seven".