2321487 has 32 divisors (see below), whose sum is σ = 4008960. Its totient is φ = 1300320.

The previous prime is 2321443. The next prime is 2321507. The reversal of 2321487 is 7841232.

It is not a de Polignac number, because 2321487 - 2¹² = 2317391 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a zygodrome in base 3.

It is a self number, because there is not a number n which added to its sum of digits gives 2321487.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2321087) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13333 + ... + 13505.

It is an arithmetic number, because the mean of its divisors is an integer number (125280).

2^2321487 is an apocalyptic number.

2321487 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

2321487 is a deficient number, since it is larger than the sum of its proper divisors (1687473).

2321487 is a wasteful number, since it uses less digits than its factorization.

2321487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260 (or 254 counting only the distinct ones).

The product of its digits is 2688, while the sum is 27.

The square root of 2321487 is about 1523.6426746452. The cubic root of 2321487 is about 132.4103962836.

It can be divided in two parts, 2 and 321487, that added together give a square (321489 = 567²).

The spelling of 2321487 in words is "two million, three hundred twenty-one thousand, four hundred eighty-seven".