1487091 has 8 divisors (see below), whose sum is σ = 2051280. Its totient is φ = 957152.

The previous prime is 1487081. The next prime is 1487093. The reversal of 1487091 is 1907841.

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 1487091 - 2⁶ = 1487027 is a prime.

It is a super-2 number, since 2×1487091² = 4422879284562, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1487093) 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, 8460 + ... + 8633.

It is an arithmetic number, because the mean of its divisors is an integer number (256410).

2^1487091 is an apocalyptic number.

1487091 is a deficient number, since it is larger than the sum of its proper divisors (564189).

1487091 is a wasteful number, since it uses less digits than its factorization.

1487091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17125.

The product of its (nonzero) digits is 2016, while the sum is 30.

The square root of 1487091 is about 1219.4634065850. The cubic root of 1487091 is about 114.1420973526.

The spelling of 1487091 in words is "one million, four hundred eighty-seven thousand, ninety-one".