1720696061 has 16 divisors (see below), whose sum is σ = 1988173824. Its totient is φ = 1458672624.

The previous prime is 1720696037. The next prime is 1720696141. The reversal of 1720696061 is 1606960271.

It is a cyclic number.

It is not a de Polignac number, because 1720696061 - 2¹⁸ = 1720433917 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1720696661) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1097300 + ... + 1098866.

It is an arithmetic number, because the mean of its divisors is an integer number (124260864).

Almost surely, 2^1720696061 is an apocalyptic number.

It is an amenable number.

1720696061 is a deficient number, since it is larger than the sum of its proper divisors (267477763).

1720696061 is a wasteful number, since it uses less digits than its factorization.

1720696061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3200.

The product of its (nonzero) digits is 27216, while the sum is 38.

The square root of 1720696061 is about 41481.2736183449. The cubic root of 1720696061 is about 1198.3068856396.

The spelling of 1720696061 in words is "one billion, seven hundred twenty million, six hundred ninety-six thousand, sixty-one".