693439051 has 4 divisors (see below), whose sum is σ = 696725704. Its totient is φ = 690152400.

The previous prime is 693439049. The next prime is 693439057. The reversal of 693439051 is 150934396.

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 693439051 - 2¹ = 693439049 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 693438995 and 693439013.

It is not an unprimeable number, because it can be changed into a prime (693439057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1643010 + ... + 1643431.

It is an arithmetic number, because the mean of its divisors is an integer number (174181426).

Almost surely, 2^693439051 is an apocalyptic number.

693439051 is a deficient number, since it is larger than the sum of its proper divisors (3286653).

693439051 is a wasteful number, since it uses less digits than its factorization.

693439051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3286652.

The product of its (nonzero) digits is 87480, while the sum is 40.

The square root of 693439051 is about 26333.2309259612. The cubic root of 693439051 is about 885.1212452652.

The spelling of 693439051 in words is "six hundred ninety-three million, four hundred thirty-nine thousand, fifty-one".