2651729 has 2 divisors, whose sum is σ = 2651730. Its totient is φ = 2651728.

The previous prime is 2651717. The next prime is 2651741. The reversal of 2651729 is 9271562.

It is a balanced prime because it is at equal distance from previous prime (2651717) and next prime (2651741).

It can be written as a sum of positive squares in only one way, i.e., 2096704 + 555025 = 1448^2 + 745^2 .

It is a cyclic number.

It is not a de Polignac number, because 2651729 - 2⁴ = 2651713 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2651695 and 2651704.

It is not a weakly prime, because it can be changed into another prime (2651329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1325864 + 1325865.

It is an arithmetic number, because the mean of its divisors is an integer number (1325865).

2^2651729 is an apocalyptic number.

It is an amenable number.

2651729 is a deficient number, since it is larger than the sum of its proper divisors (1).

2651729 is an equidigital number, since it uses as much as digits as its factorization.

2651729 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7560, while the sum is 32.

The square root of 2651729 is about 1628.4130311441. The cubic root of 2651729 is about 138.4128398938.

The spelling of 2651729 in words is "two million, six hundred fifty-one thousand, seven hundred twenty-nine".