788993897 has 4 divisors (see below), whose sum is σ = 789621840. Its totient is φ = 788365956.

The previous prime is 788993879. The next prime is 788993899. The reversal of 788993897 is 798399887.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 798399887 = 3739 ⋅213533.

It is a cyclic number.

It is not a de Polignac number, because 788993897 - 2¹⁴ = 788977513 is a prime.

It is a super-2 number, since 2×788993897² = 1245022739006493218, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (788993899) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 312083 + ... + 314600.

It is an arithmetic number, because the mean of its divisors is an integer number (197405460).

Almost surely, 2^788993897 is an apocalyptic number.

It is an amenable number.

788993897 is a deficient number, since it is larger than the sum of its proper divisors (627943).

788993897 is a wasteful number, since it uses less digits than its factorization.

788993897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 627942.

The product of its digits is 54867456, while the sum is 68.

The square root of 788993897 is about 28089.0351738895. The cubic root of 788993897 is about 924.0409429613.

The spelling of 788993897 in words is "seven hundred eighty-eight million, nine hundred ninety-three thousand, eight hundred ninety-seven".