4721697389 has 8 divisors (see below), whose sum is σ = 4875998208. Its totient is φ = 4567520880.

The previous prime is 4721697373. The next prime is 4721697433. The reversal of 4721697389 is 9837961274.

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 4721697389 - 2⁴ = 4721697373 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 (4721691389) 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, 49484 + ... + 109050.

It is an arithmetic number, because the mean of its divisors is an integer number (609499776).

Almost surely, 2^4721697389 is an apocalyptic number.

It is an amenable number.

4721697389 is a deficient number, since it is larger than the sum of its proper divisors (154300819).

4721697389 is a wasteful number, since it uses less digits than its factorization.

4721697389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62155.

The product of its digits is 4572288, while the sum is 56.

The square root of 4721697389 is about 68714.6082649097. The cubic root of 4721697389 is about 1677.6423596260.

The spelling of 4721697389 in words is "four billion, seven hundred twenty-one million, six hundred ninety-seven thousand, three hundred eighty-nine".