69060721 has 2 divisors, whose sum is σ = 69060722. Its totient is φ = 69060720.

The previous prime is 69060713. The next prime is 69060751. The reversal of 69060721 is 12706096.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 45158400 + 23902321 = 6720^2 + 4889^2 .

It is a cyclic number.

It is not a de Polignac number, because 69060721 - 2³ = 69060713 is a prime.

It is not a weakly prime, because it can be changed into another prime (69060751) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34530360 + 34530361.

It is an arithmetic number, because the mean of its divisors is an integer number (34530361).

Almost surely, 2^69060721 is an apocalyptic number.

It is an amenable number.

69060721 is a deficient number, since it is larger than the sum of its proper divisors (1).

69060721 is an equidigital number, since it uses as much as digits as its factorization.

69060721 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 69060721 is about 8310.2780338566. The cubic root of 69060721 is about 410.2768722767.

The spelling of 69060721 in words is "sixty-nine million, sixty thousand, seven hundred twenty-one".