799553903 has 4 divisors (see below), whose sum is σ = 800330448. Its totient is φ = 798777360.

The previous prime is 799553879. The next prime is 799553917. The reversal of 799553903 is 309355997.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 799553903 - 2⁸ = 799553647 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (799553203) 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, 386726 + ... + 388787.

It is an arithmetic number, because the mean of its divisors is an integer number (200082612).

Almost surely, 2^799553903 is an apocalyptic number.

799553903 is a deficient number, since it is larger than the sum of its proper divisors (776545).

799553903 is a wasteful number, since it uses less digits than its factorization.

799553903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 776544.

The product of its (nonzero) digits is 1148175, while the sum is 50.

The square root of 799553903 is about 28276.3841924670. The cubic root of 799553903 is about 928.1451847356.

The spelling of 799553903 in words is "seven hundred ninety-nine million, five hundred fifty-three thousand, nine hundred three".