349699 has 4 divisors (see below), whose sum is σ = 399664. Its totient is φ = 299736.

The previous prime is 349697. The next prime is 349709. The reversal of 349699 is 996943.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 996943 = 359 ⋅2777.

It is a cyclic number.

It is not a de Polignac number, because 349699 - 2¹ = 349697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (349697) 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, 24972 + ... + 24985.

It is an arithmetic number, because the mean of its divisors is an integer number (99916).

2³⁴⁹⁶⁹⁹ is an apocalyptic number.

349699 is a deficient number, since it is larger than the sum of its proper divisors (49965).

349699 is an equidigital number, since it uses as much as digits as its factorization.

349699 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49964.

The product of its digits is 52488, while the sum is 40.

The square root of 349699 is about 591.3535321616. The cubic root of 349699 is about 70.4527792702.

It can be divided in two parts, 34969 and 9, that multiplied together give a square (314721 = 561²).

The spelling of 349699 in words is "three hundred forty-nine thousand, six hundred ninety-nine".