2921487 has 8 divisors (see below), whose sum is σ = 3906480. Its totient is φ = 1942080.

The previous prime is 2921423. The next prime is 2921507. The reversal of 2921487 is 7841292.

It is a happy number.

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

It is not a de Polignac number, because 2921487 - 2⁶ = 2921423 is a prime.

2921487 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2921417) 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, 37 + ... + 2417.

It is an arithmetic number, because the mean of its divisors is an integer number (488310).

2^2921487 is an apocalyptic number.

2921487 is a deficient number, since it is larger than the sum of its proper divisors (984993).

2921487 is a wasteful number, since it uses less digits than its factorization.

2921487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2793.

The product of its digits is 8064, while the sum is 33.

The square root of 2921487 is about 1709.2357941490. The cubic root of 2921487 is about 142.9556482992.

The spelling of 2921487 in words is "two million, nine hundred twenty-one thousand, four hundred eighty-seven".