1207720969 has 16 divisors (see below), whose sum is σ = 1522684800. Its totient is φ = 932250240.

The previous prime is 1207720957. The next prime is 1207720993. The reversal of 1207720969 is 9690277021.

It is a cyclic number.

It is not a de Polignac number, because 1207720969 - 2⁵ = 1207720937 is a prime.

It is a super-2 number, since 2×1207720969² = 2917179877924597922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1207720939) 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, 158119 + ... + 165580.

It is an arithmetic number, because the mean of its divisors is an integer number (95167800).

Almost surely, 2^1207720969 is an apocalyptic number.

It is an amenable number.

1207720969 is a deficient number, since it is larger than the sum of its proper divisors (314963831).

1207720969 is a wasteful number, since it uses less digits than its factorization.

1207720969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323760.

The product of its (nonzero) digits is 95256, while the sum is 43.

The square root of 1207720969 is about 34752.2800546957. The cubic root of 1207720969 is about 1064.9327968645.

The spelling of 1207720969 in words is "one billion, two hundred seven million, seven hundred twenty thousand, nine hundred sixty-nine".