699049 has 4 divisors (see below), whose sum is σ = 752836. Its totient is φ = 645264.

The previous prime is 699037. The next prime is 699053. The reversal of 699049 is 940996.

699049 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 283024 + 416025 = 532^2 + 645^2 .

It is a cyclic number.

It is not a de Polignac number, because 699049 - 2¹⁹ = 174761 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 4 and base 16.

It is a junction number, because it is equal to n+sod(n) for n = 698999 and 699017.

It is not an unprimeable number, because it can be changed into a prime (699059) 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, 26874 + ... + 26899.

It is an arithmetic number, because the mean of its divisors is an integer number (188209).

2⁶⁹⁹⁰⁴⁹ is an apocalyptic number.

It is an amenable number.

699049 is a deficient number, since it is larger than the sum of its proper divisors (53787).

699049 is a wasteful number, since it uses less digits than its factorization.

699049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53786.

The product of its (nonzero) digits is 17496, while the sum is 37.

The square root of 699049 is about 836.0915021695. The cubic root of 699049 is about 88.7501725845.

The spelling of 699049 in words is "six hundred ninety-nine thousand, forty-nine".