901669 has 8 divisors (see below), whose sum is σ = 950400. Its totient is φ = 853776.

The previous prime is 901657. The next prime is 901679. The reversal of 901669 is 966109.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 901669 - 2¹⁷ = 770597 is a prime.

It is a super-2 number, since 2×901669² = 1626013971122, which contains 22 as substring.

It is a Duffinian number.

901669 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 901669.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (901679) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4432 + ... + 4630.

It is an arithmetic number, because the mean of its divisors is an integer number (118800).

2⁹⁰¹⁶⁶⁹ is an apocalyptic number.

It is an amenable number.

901669 is a deficient number, since it is larger than the sum of its proper divisors (48731).

901669 is a wasteful number, since it uses less digits than its factorization.

901669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 419.

The product of its (nonzero) digits is 2916, while the sum is 31.

The square root of 901669 is about 949.5625308530. The cubic root of 901669 is about 96.6085831540.

The spelling of 901669 in words is "nine hundred one thousand, six hundred sixty-nine".