4721429381 has 2 divisors, whose sum is σ = 4721429382. Its totient is φ = 4721429380.

The previous prime is 4721429359. The next prime is 4721429429. The reversal of 4721429381 is 1839241274.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4602401281 + 119028100 = 67841^2 + 10910^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4721429381 is a prime.

It is a super-2 number, since 2×4721429381² = 44583790799540086322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4721429311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2360714690 + 2360714691.

It is an arithmetic number, because the mean of its divisors is an integer number (2360714691).

Almost surely, 2^4721429381 is an apocalyptic number.

It is an amenable number.

4721429381 is a deficient number, since it is larger than the sum of its proper divisors (1).

4721429381 is an equidigital number, since it uses as much as digits as its factorization.

4721429381 is an evil number, because the sum of its binary digits is even.

The product of its digits is 96768, while the sum is 41.

The square root of 4721429381 is about 68712.6580842278. The cubic root of 4721429381 is about 1677.6106175042.

The spelling of 4721429381 in words is "four billion, seven hundred twenty-one million, four hundred twenty-nine thousand, three hundred eighty-one".