799981653 has 16 divisors (see below), whose sum is σ = 1116412416. Its totient is φ = 508577520.

The previous prime is 799981619. The next prime is 799981657. The reversal of 799981653 is 356189997.

It is not a de Polignac number, because 799981653 - 2⁸ = 799981397 is a prime.

It is a super-2 number, since 2×799981653² = 1279941290273224818, which contains 22 as substring.

It is a nialpdrome in base 13.

It is a junction number, because it is equal to n+sod(n) for n = 799981593 and 799981602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (799981657) 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, 5326 + ... + 40352.

It is an arithmetic number, because the mean of its divisors is an integer number (69775776).

Almost surely, 2^799981653 is an apocalyptic number.

It is an amenable number.

799981653 is a deficient number, since it is larger than the sum of its proper divisors (316430763).

799981653 is a wasteful number, since it uses less digits than its factorization.

799981653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35384.

The product of its digits is 3674160, while the sum is 57.

The square root of 799981653 is about 28283.9469133995. The cubic root of 799981653 is about 928.3106700658.

The spelling of 799981653 in words is "seven hundred ninety-nine million, nine hundred eighty-one thousand, six hundred fifty-three".