1936656897 has 16 divisors (see below), whose sum is σ = 2955281280. Its totient is φ = 1105091712.

The previous prime is 1936656889. The next prime is 1936656899. The reversal of 1936656897 is 7986566391.

It is not a de Polignac number, because 1936656897 - 2³ = 1936656889 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1936656897.

It is not an unprimeable number, because it can be changed into a prime (1936656899) 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, 50148 + ... + 79925.

It is an arithmetic number, because the mean of its divisors is an integer number (184705080).

Almost surely, 2^1936656897 is an apocalyptic number.

It is an amenable number.

1936656897 is a deficient number, since it is larger than the sum of its proper divisors (1018624383).

1936656897 is a wasteful number, since it uses less digits than its factorization.

1936656897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130792.

The product of its digits is 14696640, while the sum is 60.

The square root of 1936656897 is about 44007.4641055356. The cubic root of 1936656897 is about 1246.4768841462.

The spelling of 1936656897 in words is "one billion, nine hundred thirty-six million, six hundred fifty-six thousand, eight hundred ninety-seven".