2170487 has 12 divisors (see below), whose sum is σ = 2481864. Its totient is φ = 1882320.

The previous prime is 2170481. The next prime is 2170501. The reversal of 2170487 is 7840712.

It is not a de Polignac number, because 2170487 - 2⁶ = 2170423 is a prime.

It is a super-2 number, since 2×2170487² = 9422027634338, which contains 22 as substring.

It is an Ulam number.

It is a pancake number, because a pancake can be divided into 2170487 parts by 2083 straight cuts.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2170481) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5633 + ... + 6005.

It is an arithmetic number, because the mean of its divisors is an integer number (206822).

2^2170487 is an apocalyptic number.

2170487 is a deficient number, since it is larger than the sum of its proper divisors (311377).

2170487 is a wasteful number, since it uses less digits than its factorization.

2170487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 430 (or 407 counting only the distinct ones).

The product of its (nonzero) digits is 3136, while the sum is 29.

The square root of 2170487 is about 1473.2572755632. The cubic root of 2170487 is about 129.4749433491.

The spelling of 2170487 in words is "two million, one hundred seventy thousand, four hundred eighty-seven".