2987357 has 4 divisors (see below), whose sum is σ = 2995740. Its totient is φ = 2978976.

The previous prime is 2987297. The next prime is 2987371. The reversal of 2987357 is 7537892.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1779556 + 1207801 = 1334^2 + 1099^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2987357 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2987057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3632 + ... + 4377.

It is an arithmetic number, because the mean of its divisors is an integer number (748935).

2^2987357 is an apocalyptic number.

It is an amenable number.

2987357 is a deficient number, since it is larger than the sum of its proper divisors (8383).

2987357 is an equidigital number, since it uses as much as digits as its factorization.

2987357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8382.

The product of its digits is 105840, while the sum is 41.

The square root of 2987357 is about 1728.3972344343. The cubic root of 2987357 is about 144.0220677342.

The spelling of 2987357 in words is "two million, nine hundred eighty-seven thousand, three hundred fifty-seven".