7087021 has 8 divisors (see below), whose sum is σ = 7277760. Its totient is φ = 6898752.

The previous prime is 7086997. The next prime is 7087027. The reversal of 7087021 is 1207807.

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 7087021 - 2¹³ = 7078829 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 (7087027) 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, 6136 + ... + 7198.

It is an arithmetic number, because the mean of its divisors is an integer number (909720).

Almost surely, 2^7087021 is an apocalyptic number.

It is an amenable number.

7087021 is a deficient number, since it is larger than the sum of its proper divisors (190739).

7087021 is a wasteful number, since it uses less digits than its factorization.

7087021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1235.

The product of its (nonzero) digits is 784, while the sum is 25.

The square root of 7087021 is about 2662.1459388997. The cubic root of 7087021 is about 192.0825473320.

The spelling of 7087021 in words is "seven million, eighty-seven thousand, twenty-one".