1956497697 has 96 divisors (see below), whose sum is σ = 3739008000. Its totient is φ = 955048320.

The previous prime is 1956497687. The next prime is 1956497801. The reversal of 1956497697 is 7967946591.

1956497697 is a `hidden beast` number, since 1 + 9 + 56 + 497 + 6 + 97 = 666.

It is not a de Polignac number, because 1956497697 - 2⁴ = 1956497681 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (1956497617) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1829679 + ... + 1830747.

It is an arithmetic number, because the mean of its divisors is an integer number (38948000).

Almost surely, 2^1956497697 is an apocalyptic number.

It is an amenable number.

1956497697 is a deficient number, since it is larger than the sum of its proper divisors (1782510303).

1956497697 is a wasteful number, since it uses less digits than its factorization.

1956497697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1251 (or 1248 counting only the distinct ones).

The product of its digits is 25719120, while the sum is 63.

The square root of 1956497697 is about 44232.3150761974. The cubic root of 1956497697 is about 1250.7190949360.

The spelling of 1956497697 in words is "one billion, nine hundred fifty-six million, four hundred ninety-seven thousand, six hundred ninety-seven".