401699 has 4 divisors (see below), whose sum is σ = 403200. Its totient is φ = 400200.

The previous prime is 401689. The next prime is 401707. The reversal of 401699 is 996104.

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 401699 - 2¹⁶ = 336163 is a prime.

It is a super-2 number, since 2×401699² = 322724173202, which contains 22 as substring.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 401699.

It is not an unprimeable number, because it can be changed into a prime (401629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 227 + ... + 924.

It is an arithmetic number, because the mean of its divisors is an integer number (100800).

2⁴⁰¹⁶⁹⁹ is an apocalyptic number.

401699 is a deficient number, since it is larger than the sum of its proper divisors (1501).

401699 is a wasteful number, since it uses less digits than its factorization.

401699 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1500.

The product of its (nonzero) digits is 1944, while the sum is 29.

The square root of 401699 is about 633.7972862044. The cubic root of 401699 is about 73.7848021133.

The spelling of 401699 in words is "four hundred one thousand, six hundred ninety-nine".