2959921 has 8 divisors (see below), whose sum is σ = 3156840. Its totient is φ = 2765568.

The previous prime is 2959867. The next prime is 2959937. The reversal of 2959921 is 1299592.

It can be written as a sum of positive squares in 4 ways, for example, as 32400 + 2927521 = 180^2 + 1711^2 .

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 2959921 - 2⁷ = 2959793 is a prime.

It is a super-2 number, since 2×2959921² = 17522264652482, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2959951) 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, 2115 + ... + 3223.

It is an arithmetic number, because the mean of its divisors is an integer number (394605).

2^2959921 is an apocalyptic number.

It is an amenable number.

2959921 is a deficient number, since it is larger than the sum of its proper divisors (196919).

2959921 is a wasteful number, since it uses less digits than its factorization.

2959921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1283.

The product of its digits is 14580, while the sum is 37.

The square root of 2959921 is about 1720.4420943467. The cubic root of 2959921 is about 143.5798096757.

The spelling of 2959921 in words is "two million, nine hundred fifty-nine thousand, nine hundred twenty-one".