3962729 has 2 divisors, whose sum is σ = 3962730. Its totient is φ = 3962728.

The previous prime is 3962713. The next prime is 3962731. The reversal of 3962729 is 9272693.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2474329 + 1488400 = 1573^2 + 1220^2 .

It is a cyclic number.

It is not a de Polignac number, because 3962729 - 2⁴ = 3962713 is a prime.

It is a super-2 number, since 2×3962729² = 31406442254882, which contains 22 as substring.

Together with 3962731, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 3962692 and 3962701.

It is not a weakly prime, because it can be changed into another prime (3962759) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1981364 + 1981365.

It is an arithmetic number, because the mean of its divisors is an integer number (1981365).

Almost surely, 2^3962729 is an apocalyptic number.

It is an amenable number.

3962729 is a deficient number, since it is larger than the sum of its proper divisors (1).

3962729 is an equidigital number, since it uses as much as digits as its factorization.

3962729 is an evil number, because the sum of its binary digits is even.

The product of its digits is 40824, while the sum is 38.

The square root of 3962729 is about 1990.6604431696. The cubic root of 3962729 is about 158.2455323608.

It can be divided in two parts, 396 and 2729, that added together give a 5-th power (3125 = 5⁵).

The spelling of 3962729 in words is "three million, nine hundred sixty-two thousand, seven hundred twenty-nine".